A262290 a(0)=0; thereafter, add the smallest nonzero binary number, not a power of 2, that is not a substring of the binary expansion of a(n).

0, 3, 8, 11, 17, 20, 23, 29, 38, 43, 49, 54, 61, 70, 75, 81, 84, 87, 93, 102, 107, 114, 119, 128, 131, 136, 139, 145, 148, 151, 157, 167, 173, 180, 187, 196, 201, 206, 211, 218, 225, 230, 235, 244, 253, 262, 267, 273, 276, 279, 285, 294, 299, 305, 310, 317, 327, 333, 340, 343, 349, 358, 365, 372, 381

Offset: 0

Author

N. J. A. Sloane, Sep 19 2015

Keywords

• nonn
• base

Crossrefs

Cf. A260273, A262289.

Identical to A261416 except for first two terms.

Formula

a(n+1) = a(n) + A262289(a(n)).