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A284676 Positions of 1 in A284674; complement of A284675. 4
2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15, 16, 17, 18, 20, 21, 22, 24, 25, 26, 28, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 50, 51, 52, 54, 55, 56, 58, 59, 60, 61, 63, 64, 65, 67, 68, 69, 71, 72, 73, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: -1 < n*r - a(n) < 4 for n >= 1, where r = (-1+sqrt(13))/2.

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1}, 1 -> {0, 1, 1, 1}}] &, {0}, 6] (* A284674 *)

Flatten[Position[s, 0]]  (* A284675 *)

Flatten[Position[s, 1]]  (* A284676 *)

CROSSREFS

Cf. A284674, A284675, A284679.

Sequence in context: A039117 A185024 A247915 * A187681 A107750 A196736

Adjacent sequences:  A284673 A284674 A284675 * A284677 A284678 A284679

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 08 2017

STATUS

approved

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Last modified December 12 20:04 EST 2017. Contains 295954 sequences.