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A171675
Square numbers n divisible by (at least one) sum of two positive digits of n.
0
36, 81, 144, 196, 256, 289, 324, 576, 676, 729, 1089, 1156, 1225, 1296, 1521, 1764, 1936, 2116, 2304, 2601, 2916, 3025, 3136, 3600, 3969, 4356, 4624, 5184, 5929, 6084, 6400, 7056, 7744, 8100, 8464, 9216, 9801, 10816, 11025, 11236, 11664, 12100, 12321
OFFSET
1,1
COMMENTS
Subsequence of A171674.
EXAMPLE
12^2=144=(4+4)*18, 14^2=196=(1+7)*28, 171^2=29241=(1+2)*9747.
CROSSREFS
Cf. A005349 Niven (or Harshad) numbers: numbers that are divisible by the sum of their digits, A171674 Numbers n divisible by (at least one) sum of two positive digits of n.
Sequence in context: A279901 A335276 A271629 * A136359 A257649 A259240
KEYWORD
base,nonn
AUTHOR
Zak Seidov, Dec 15 2009
STATUS
approved