A260391 Positions of 0 in the infinite palindromic word at A260390.

2, 4, 6, 8, 10, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 38, 40, 42, 44, 46, 50, 52, 54, 56, 58, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 134, 136

Offset

1,1

Comments

Complement of A260392, the positions of 1. See A260390 for a guide to related sequences.

Links

Clark Kimberling, Table of n, a(n) for n = 1..10000

Mathematica

u[1] = {1, 0}; m[1] = {u[1][[1]]};
u[n_] := u[n] = Join[u[n - 1], m[n - 1], Reverse[u[n - 1]]];
m[k_] := {u[k - 1][[k]]}; u[8]  (* A260390 *)
Table[Length[u[n]], {n, 1, 20}]  (* A083329 *)
Flatten[Position[u[8], 0]]   (* A260391 *)
Flatten[Position[u[8], 1]]   (* A260392 *)

Crossrefs

Cf. A260390, A260392.

Sequence in context: A337972 A302979 A006586 * A022292 A225241 A087370

Adjacent sequences: A260388 A260389 A260390 * A260392 A260393 A260394

Keyword

nonn,easy

Author

Clark Kimberling, Jul 31 2015

Status

approved