Triangular array in which n-th row consists of numbers with digit sum n arranged in increasing numerical order.
1, 2, 11, 3, 12, 21, 111, 4, 13, 22, 31, 112, 121, 211, 1111, 5, 14, 23, 32, 41, 113, 122
1 seqfan posts
Wed Aug 18 12:46:16 CEST 2010 [seqfan] Foxy sequences