A260396 - OEIS

A260396

Positions of 1 in the infinite palindromic word at A260394.

2, 3, 5, 6, 8, 10, 11, 13, 14, 16, 18, 19, 21, 22, 24, 26, 27, 29, 30, 34, 35, 37, 38, 40, 42, 43, 45, 46, 48, 50, 51, 53, 54, 56, 58, 59, 61, 62, 64, 66, 67, 69, 70, 72, 74, 75, 77, 78, 80, 82, 83, 85, 86, 88, 90, 91, 93, 94, 98, 99, 101, 102, 104, 106, 107

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Complement of A260395, the positions of 0. See A260390 for a guide to related sequences.

LINKS

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

MATHEMATICA

u[1] = {0, 1, 1}; m[1] = {u[1][[1]]};

u[n_] := u[n] = Join[u[n - 1], m[n - 1], Reverse[u[n - 1]]];

m[k_] := {u[k][[k]]}; v = u[6] (* A260394 *)

Table[Length[u[n]], {n, 1, 20}] (* A000225 *)