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A284777 Positions of 1 in A284775; complement of A284776. 7
2, 5, 6, 8, 10, 13, 14, 17, 18, 20, 23, 24, 26, 29, 30, 32, 34, 37, 38, 41, 42, 44, 46, 49, 50, 53, 54, 56, 59, 60, 62, 64, 67, 68, 71, 72, 74, 77, 78, 80, 82, 85, 86, 89, 90, 92, 95, 96, 98, 101, 102, 104, 106, 109, 110, 113, 114, 116, 118, 121, 122, 125 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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

LINKS

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

EXAMPLE

As a word, A284775 = 0100110..., in which 0 is in positions 2,5,6,8,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 0, 1, 1}}] &, {0}, 7]; (* A284775 *)

Flatten[Position[s, 0]];  (* A284776 *)

Flatten[Position[s, 1]];  (* A284777 *)

CROSSREFS

Cf. A284775, A284776.

Sequence in context: A121411 A224889 A047441 * A081083 A288635 A308595

Adjacent sequences:  A284774 A284775 A284776 * A284778 A284779 A284780

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 14 2017

STATUS

approved

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Last modified July 2 13:40 EDT 2020. Contains 335401 sequences. (Running on oeis4.)