A013947 Positions of 1's in Kolakoski sequence (A000002).

1, 4, 5, 7, 10, 13, 14, 16, 17, 20, 22, 23, 25, 28, 29, 31, 32, 34, 37, 40, 41, 43, 46, 48, 49, 51, 52, 55, 58, 59, 61, 64, 67, 68, 70, 71, 73, 76, 78, 79, 82, 85, 86, 88, 91, 94, 95, 97, 98, 101, 103, 104, 106, 109, 112, 113, 115, 116, 118, 121, 122, 124, 125, 128, 130, 131, 133

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• easy

Crossrefs

Complement: A013948.

Cf. A000002, A022297, A156077.

Formula

For n > 1, a(n) = A022297(n)+1.