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A284752 Positions of 0 in A284751; complement of A284753. 3
1, 3, 4, 5, 7, 9, 11, 13, 14, 15, 17, 19, 20, 21, 23, 25, 26, 27, 29, 31, 32, 33, 35, 37, 39, 41, 42, 43, 45, 47, 48, 49, 51, 53, 55, 57, 58, 59, 61, 63, 64, 65, 67, 69, 71, 73, 74, 75, 77, 79, 80, 81, 83, 85, 87, 89, 90, 91, 93, 95, 96, 97, 99, 101, 102 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

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

Index entries for sequences that are fixed points of mappings

EXAMPLE

As a word, A284751 = 010001..., in which 0 is in positions 1,3,4,5,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 0, 0, 1}}] &, {0}, 6] (* A284751 *)

Flatten[Position[s, 0]]  (* A284752 *)

Flatten[Position[s, 1]]  (* A284753 *)

CROSSREFS

Cf. A284751, A284753.

Sequence in context: A256455 A035242 A190941 * A161153 A128201 A233514

Adjacent sequences:  A284749 A284750 A284751 * A284753 A284754 A284755

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 13 2017

STATUS

approved

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Last modified November 20 23:06 EST 2019. Contains 329348 sequences. (Running on oeis4.)