test_recurr:  make tests more general to accept all correct results.
test_recurr:  make tests more general to accept all correct results.

MridulS/sympy,aktech/sympy,Shaswat27/sympy,saurabhjn76/sympy,hargup/sympy,wyom/sympy,jerli/sympy,postvakje/sympy,oliverlee/sympy,emon10005/sympy,yashsharan/sympy,ga7g08/sympy,atreyv/sympy,atsao72/sympy,liangjiaxing/sympy,lindsayad/sympy,shipci/sympy,toolforger/sympy,yashsharan/sympy,Titan-C/sympy,liangjiaxing/sympy,Davidjohnwilson/sympy,emon10005/sympy,VaibhavAgarwalVA/sympy,Davidjohnwilson/sympy,MechCoder/sympy,kevalds51/sympy,sahmed95/sympy,MechCoder/sympy,AunShiLord/sympy,jamesblunt/sympy,chaffra/sympy,madan96/sympy,madan96/sympy,shikil/sympy,moble/sympy,wanglongqi/sympy,skidzo/sympy,cccfran/sympy,Curious72/sympy,maniteja123/sympy,ChristinaZografou/sympy,grevutiu-gabriel/sympy,Vishluck/sympy,asm666/sympy,jaimahajan1997/sympy,moble/sympy,cswiercz/sympy,mafiya69/sympy,kaushik94/sympy,pandeyadarsh/sympy,pandeyadarsh/sympy,grevutiu-gabriel/sympy,mcdaniel67/sympy,skirpichev/omg,kumarkrishna/sympy,rahuldan/sympy,ahhda/sympy,yashsharan/sympy,iamutkarshtiwari/sympy,liangjiaxing/sympy,wanglongqi/sympy,vipulroxx/sympy,AkademieOlympia/sympy,ahhda/sympy,jbbskinny/sympy,minrk/sympy,debugger22/sympy,AkademieOlympia/sympy,fperez/sympy,sahmed95/sympy,atsao72/sympy,ChristinaZografou/sympy,pandeyadarsh/sympy,Gadal/sympy,jaimahajan1997/sympy,skidzo/sympy,kaichogami/sympy,iamutkarshtiwari/sympy,Gadal/sympy,dqnykamp/sympy,hrashk/sympy,sahilshekhawat/sympy,pernici/sympy,Arafatk/sympy,lidavidm/sympy,minrk/sympy,lidavidm/sympy,hazelnusse/sympy-old,wyom/sympy,oliverlee/sympy,lidavidm/sympy,rahuldan/sympy,jerli/sympy,grevutiu-gabriel/sympy,Titan-C/sympy,Vishluck/sympy,VaibhavAgarwalVA/sympy,ryanGT/sympy,pbrady/sympy,abhiii5459/sympy,abloomston/sympy,bukzor/sympy,atsao72/sympy,jerli/sympy,drufat/sympy,Arafatk/sympy,sahilshekhawat/sympy,Davidjohnwilson/sympy,shipci/sympy,chaffra/sympy,yukoba/sympy,hrashk/sympy,ga7g08/sympy,Sumith1896/sympy,Designist/sympy,sampadsaha5/sympy,beni55/sympy,diofant/diofant,Sumith1896/sympy,Shaswat27/sympy,wanglongqi/sympy,bukzor/sympy,jbaayen/sympy,vipulroxx/sympy,Designist/sympy,saurabhjn76/sympy,beni55/sympy,souravsingh/sympy,saurabhjn76/sympy,tovrstra/sympy,kaichogami/sympy,meghana1995/sympy,Vishluck/sympy,postvakje/sympy,MridulS/sympy,Gadal/sympy,jbbskinny/sympy,jamesblunt/sympy,mafiya69/sympy,Curious72/sympy,rahuldan/sympy,madan96/sympy,amitjamadagni/sympy,farhaanbukhsh/sympy,farhaanbukhsh/sympy,drufat/sympy,oliverlee/sympy,amitjamadagni/sympy,MridulS/sympy,kmacinnis/sympy,Arafatk/sympy,sahilshekhawat/sympy,MechCoder/sympy,Titan-C/sympy,kumarkrishna/sympy,Curious72/sympy,kmacinnis/sympy,drufat/sympy,yukoba/sympy,aktech/sympy,kevalds51/sympy,ahhda/sympy,postvakje/sympy,abloomston/sympy,chaffra/sympy,sunny94/temp,atreyv/sympy,hargup/sympy,hargup/sympy,souravsingh/sympy,lindsayad/sympy,Shaswat27/sympy,jaimahajan1997/sympy,AunShiLord/sympy,VaibhavAgarwalVA/sympy,garvitr/sympy,asm666/sympy,hrashk/sympy,debugger22/sympy,abhiii5459/sympy,sampadsaha5/sympy,garvitr/sympy,maniteja123/sympy,skidzo/sympy,cccfran/sympy,maniteja123/sympy,dqnykamp/sympy,dqnykamp/sympy,pbrady/sympy,vipulroxx/sympy,mcdaniel67/sympy,cccfran/sympy,meghana1995/sympy,Mitchkoens/sympy,mattpap/sympy-polys,garvitr/sympy,kmacinnis/sympy,toolforger/sympy,lindsayad/sympy,kevalds51/sympy,srjoglekar246/sympy,iamutkarshtiwari/sympy,jamesblunt/sympy,toolforger/sympy,KevinGoodsell/sympy,mafiya69/sympy,debugger22/sympy,sunny94/temp,kaichogami/sympy,Mitchkoens/sympy,AkademieOlympia/sympy,beni55/sympy,hazelnusse/sympy-old,meghana1995/sympy,pbrady/sympy,cswiercz/sympy,flacjacket/sympy,bukzor/sympy,emon10005/sympy,farhaanbukhsh/sympy,asm666/sympy,cswiercz/sympy,shipci/sympy,jbbskinny/sympy,shikil/sympy,souravsingh/sympy,kaushik94/sympy,aktech/sympy,shikil/sympy,AunShiLord/sympy,kaushik94/sympy,wyom/sympy,ga7g08/sympy,kumarkrishna/sympy,atreyv/sympy,yukoba/sympy,mcdaniel67/sympy,Mitchkoens/sympy,moble/sympy,ChristinaZografou/sympy,sunny94/temp,Sumith1896/sympy,sampadsaha5/sympy,abhiii5459/sympy,Designist/sympy,sahmed95/sympy,abloomston/sympy