A171954 Positions of 4's in A181391.

17, 26, 58, 65, 107, 120, 127, 131, 132, 140, 144, 145, 154, 158, 159, 166, 185, 189, 190, 214, 220, 234, 238, 239, 248, 267, 290, 299, 301, 323, 326, 336, 340, 341, 350, 359, 373, 382, 434, 438, 439, 446, 452, 458, 464, 477, 481, 482, 496

Offset: 1

Author

N. J. A. Sloane, Oct 29 2010

Keywords

• nonn

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..1035

Crossrefs

Cf. A181391, A171865, A171951-A171956.