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A287109 Positions of 0 in A287108. 4
2, 3, 6, 12, 13, 19, 23, 25, 26, 29, 35, 39, 41, 42, 48, 50, 51, 55, 56, 59, 65, 66, 72, 76, 78, 79, 85, 87, 88, 92, 93, 96, 102, 106, 108, 109, 113, 114, 117, 123, 125, 126, 129, 135, 136, 142, 146, 148, 149, 152, 158, 162, 164, 165, 171, 173, 174, 178, 179 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 10] (* A287108 *)

Flatten[Position[s, 0]] (* A287109 *)

Flatten[Position[s, 1]] (* A287110 *)

Flatten[Position[s, 2]] (* A287111 *)

CROSSREFS

Cf. A287108, A287110, A287111.

Sequence in context: A294720 A082002 A102779 * A084417 A015774 A015767

Adjacent sequences:  A287106 A287107 A287108 * A287110 A287111 A287112

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 21 2017

STATUS

approved

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Last modified October 23 12:45 EDT 2019. Contains 328345 sequences. (Running on oeis4.)