Smith (or joke) numbers: composite numbers n such that sum of digits of n = sum of digits of prime factors of n (counted with multiplicity).
4, 22, 27, 58, 85, 94, 121, 166, 202, 265, 274, 319, 346, 355, 378, 382, 391, 438, 454
1 seqfan posts
Mon Sep 26 18:28:28 CEST 2011 [seqfan] Re: broken links to pages from W. Schneider