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A287157 Positions of 0 in A287156. 4
4, 6, 7, 11, 12, 15, 21, 23, 24, 27, 33, 34, 40, 44, 46, 47, 51, 52, 55, 61, 62, 68, 72, 74, 75, 78, 84, 88, 90, 91, 97, 99, 100, 104, 105, 108, 114, 116, 117, 120, 126, 127, 133, 137, 139, 140, 143, 149, 153, 155, 156, 162, 164, 165, 169, 170, 173, 179, 180 (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}, 11] (* A287156 *)

Flatten[Position[s, 0]] (* A287157 *)

Flatten[Position[s, 1]] (* A287158 *)

Flatten[Position[s, 2]] (* A287159 *)

CROSSREFS

Cf. A287108, A287156, A287158, A287159.

Sequence in context: A247546 A110605 A206775 * A102140 A047289 A345717

Adjacent sequences:  A287154 A287155 A287156 * A287158 A287159 A287160

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 22 2017

STATUS

approved

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Last modified January 23 03:15 EST 2022. Contains 350504 sequences. (Running on oeis4.)