Lexicographically first injective and unbounded sequence a(n) satisfying |a(n+1)-a(n)|=n for all n
0, 1, 3, 6, 2, 7, 13, 20, 12, 21, 11, 22, 10, 23, 9, 24, 8, 25, 43, 62, 42, 63, 41, 64, 40
2 seqfan posts
Sat Mar 13 00:07:33 CET 2010 [seqfan] Re: seqs whose |differences| are 1,2,3,4,...