A286927 - OEIS

A286927

Positions of 1 in A286925; complement of A286926.

6, 12, 20, 26, 34, 40, 46, 54, 60, 68, 74, 80, 88, 94, 102, 108, 116, 122, 128, 136, 142, 150, 156, 162, 170, 176, 184, 190, 198, 204, 210, 218, 224, 232, 238, 244, 252, 258, 266, 272, 278, 286, 292, 300, 306, 314, 320, 326, 334, 340, 348, 354, 360, 368, 374

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

OFFSET

1,1

COMMENTS

a(n) - a(n-1) is in {6,8} for n>=2, and a(n)/n -> 4 + sqrt(8).

LINKS

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

FORMULA

a(n) = 2*A001952(n).

EXAMPLE

As a word, A286925 = 00000100000100000001..., in which 1 is in positions 6,12,20,26,34,....

MATHEMATICA