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A287235
Positions of 0 in A287234.
4
2, 4, 7, 9, 11, 14, 16, 19, 20, 23, 25, 27, 30, 32, 34, 37, 39, 42, 43, 46, 48, 50, 53, 55, 58, 59, 62, 63, 66, 68, 71, 72, 75, 77, 79, 82, 84, 86, 89, 91, 94, 95, 98, 100, 102, 105, 107, 109, 112, 114, 117, 118, 121, 123, 125, 128, 130, 133, 134, 137, 138
OFFSET
1,1
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {2, 0}, 2 -> 1}] &, {1}, 10] (* A287234 *)
Flatten[Position[s, 0]] (* A287235 *)
Flatten[Position[s, 1]] (* A287236 *)
Flatten[Position[s, 2]] (* A287237 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 24 2017
STATUS
approved