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A284937 Positions of 1 in A284935; complement of A284936. 3
2, 3, 4, 7, 8, 11, 12, 16, 18, 19, 20, 23, 24, 28, 30, 31, 32, 35, 36, 40, 42, 44, 45, 46, 50, 51, 52, 55, 56, 59, 60, 64, 66, 67, 68, 71, 72, 76, 78, 80, 81, 82, 86, 87, 88, 91, 92, 95, 96, 100, 102, 103, 104, 107, 108, 112, 114, 116, 117, 118, 122, 123 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  2n - a(n) is in {0,1,2} for n >= 1.

LINKS

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

EXAMPLE

As a word, A284935 = 011100..., in which 1 is in positions 2,3,4,7,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 1, 0, 0}}] &, {0}, 6] (* A284935 *)

Flatten[Position[s, 0]]  (* A284936 *)

Flatten[Position[s, 1]]  (* A284937 *)

CROSSREFS

Cf. A284936, A284937.

Sequence in context: A026808 A240767 A342028 * A271441 A328421 A003508

Adjacent sequences:  A284934 A284935 A284936 * A284938 A284939 A284940

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 18 2017

STATUS

approved

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Last modified January 22 07:31 EST 2022. Contains 350481 sequences. (Running on oeis4.)