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A284365 Positions of 0 in A284364; complement of A284366. 3
2, 4, 6, 9, 11, 13, 16, 18, 20, 23, 25, 27, 29, 31, 33, 36, 38, 40, 43, 45, 47, 50, 52, 54, 56, 58, 60, 63, 65, 67, 70, 72, 74, 77, 79, 81, 83, 85, 87, 90, 92, 94, 97, 99, 101, 104, 106, 108, 111, 113, 115, 118, 120, 122, 125, 127, 129, 131, 133, 135, 138 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  -2 < n*r - a(n) < 2 for n >= 1, where r = (9+sqrt(21))/6.

LINKS

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

EXAMPLE

The first 6 letters of the word in A284364 are 101010, in which the positions of 0 are 2,4,6.

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1}, 1 -> {1, 0, 1, 0, 1, 0}}] &, {0}, 10] (* A284364 *)

Flatten[Position[s, 0]]  (* A284365 *)

Flatten[Position[s, 1]]  (* A284366 *)

CROSSREFS

Cf. A284364, A284366.

Sequence in context: A059566 A327213 A322532 * A059545 A187339 A292649

Adjacent sequences:  A284362 A284363 A284364 * A284366 A284367 A284368

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Mar 26 2017

STATUS

approved

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Last modified November 15 06:05 EST 2019. Contains 329144 sequences. (Running on oeis4.)