sequences.extras: make loop>array faster using produce.
sequences.extras: make loop>array faster using produce.

mrjbq7/factor,bpollack/factor,bpollack/factor,bpollack/factor,tgunr/factor,factor/factor,factor/factor,mrjbq7/factor,bpollack/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,factor/factor,mrjbq7/factor,mrjbq7/factor,mrjbq7/factor,factor/factor,factor/factor,bpollack/factor,tgunr/factor,tgunr/factor,factor/factor,bpollack/factor,tgunr/factor,bpollack/factor