From: "Todd B." Date: 2012-09-29T06:45:51+09:00 Subject: Re: ibonacci sequence problem I got 4_613_732 using z, s = [0, 1], 0 while (z << (n = z[-1] + z[-2]))[-1] < 4_000_000 s += n if n % 2 == 0 end p s => 4613732 What did they say you should get? -- Posted via http://www.ruby-forum.com/.