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A260396 Positions of 1 in the infinite palindromic word at A260394. 2
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 *)

Flatten[Position[u[8], 0]] (* A260395 *)

Flatten[Position[u[8], 1]] (* A260396 *)

CROSSREFS

Cf. A260390, A260394, A260395.

Sequence in context: A285209 A184590 A047448 * A029921 A026355 A099267

Adjacent sequences:  A260393 A260394 A260395 * A260397 A260398 A260399

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Aug 13 2015

STATUS

approved

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Last modified August 3 08:53 EDT 2020. Contains 336197 sequences. (Running on oeis4.)