A284944 -id:A284944

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A284945

Positions of 0 in A284944; complement of A284946.

+20
3

1, 6, 10, 14, 18, 19, 24, 28, 32, 33, 38, 42, 46, 47, 52, 56, 60, 61, 63, 68, 72, 76, 80, 81, 86, 90, 94, 95, 100, 104, 108, 109, 111, 116, 120, 124, 128, 129, 134, 138, 142, 143, 148, 152, 156, 157, 159, 164, 168, 172, 176, 177, 182, 186, 190, 191, 196, 200

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

OFFSET

1,2

COMMENTS

Conjecture: -4 < n*r - a(n) < 3 for n >= 1, where r = 2 + sqrt(2).

LINKS

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

EXAMPLE

As a word, A284938 = 011110..., in which 0 is in positions 1,6,10,14,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 1, 1, 0}}] &, {0}, 6] (* A284944 *)

Flatten[Position[s, 0]] (* A284945 *)

Flatten[Position[s, 1]] (* A284946 *)

CROSSREFS

Cf. A284944, A284946.

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 18 2017

STATUS

approved

A284946

Positions of 1 in A284944; complement of A284945.