Revised to collect garbage before each timing shows the recursive function isn't too bad (but not great):
cpu time: 405 real time: 404 gc time: 0 2452578471 cpu time: 368 real time: 368 gc time: 0 2452578471 cpu time: 50 real time: 50 gc time: 0 2452578471 cpu time: 194 real time: 195 gc time: 75 2452578471 Dan -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
