Different approach by analyzing the sequence+/\1,,1,.+/\2,3*2^i.4 1 2 4 5 10 11 22 23 46 47 94
Or shorter: ,(,.>:)+/\1,3*2^i.3 1 2 4 5 10 11 22 23 -- Met vriendelijke groet, @@i = Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
