Allowable values of the "dropping time" of the Collatz (3x+1) iteration.
1, 3, 6, 8, 11, 13, 16, 19, 21, 24, 26, 29, 32, 34, 37, 39, 42, 44, 47, 50, 52, 55, 57, 60
1 seqfan posts
Sun Jun 27 23:38:32 CEST 2010 [seqfan] Stirling-2 Numbers and dropping times of the Collatz Conjecture