A106218 Positions of 2's in A106216.

6, 9, 12, 21, 27, 33, 69, 75, 84, 87, 93, 96, 111, 123, 126, 162, 165, 192, 225, 228, 231, 234, 237, 240, 264, 270, 273, 276, 288, 300, 306, 318, 321, 339, 345, 354, 357, 360, 378, 381, 384, 390, 417, 426, 429, 432, 438, 441, 447, 453, 468, 471, 474, 477, 483

Offset: 0

Author

Paul D. Hanna, May 01 2005

Keywords

• nonn

Crossrefs

Cf. A106216, A106217, A106219.

Programs

PARI

Formula

a(n) = 0 (mod 3) for all n.