A171924 Records in A031883 (positions).

1, 2, 6, 14, 36, 122, 162, 450, 2364, 4760, 4818, 8541, 19570, 44514, 47448, 114885, 378956, 384324, 542246, 1275572, 1385164, 3865640, 4514352, 5226312, 6271502, 12817002, 18665964, 19815336, 33506604, 42712210

Offset: 1

Author

R. J. Mathar, Oct 23 2010

Keywords

• nonn

Crossrefs

Cf. A000959, A031883, A171923.

Extensions

a(16)-a(30) from Donovan Johnson, Oct 24 2010