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A260391 Positions of 0 in the infinite palindromic word at A260390. 3
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 (list; graph; refs; listen; history; text; internal format)
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: A253241 A302979 A006586 * A022292 A225241 A087370

Adjacent sequences:  A260388 A260389 A260390 * A260392 A260393 A260394

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jul 31 2015

STATUS

approved

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Last modified November 17 18:24 EST 2019. Contains 329241 sequences. (Running on oeis4.)