optimize seed() creation, speeding gcd() up by 2x. fix return on seed()
optimize seed() creation, speeding gcd() up by 2x. fix return on seed()

xmission/d-note,printerpam/d-note,herlo/d-note,xmission/d-note,printerpam/d-note,xmission/d-note,herlo/d-note,printerpam/d-note,xmission/d-note,xmission/d-note,atoponce/d-note,atoponce/d-note,atoponce/d-note