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A287347
Positions of 1 in A287345.
4
6, 7, 9, 10, 16, 17, 19, 20, 22, 23, 25, 26, 27, 28, 33, 34, 40, 41, 43, 44, 45, 46, 51, 52, 62, 63, 65, 66, 72, 73, 75, 76, 78, 79, 81, 82, 83, 84, 89, 90, 96, 97, 99, 100, 101, 102, 107, 108, 114, 115, 117, 118, 119, 120, 125, 126, 132, 133, 135, 136, 137
OFFSET
1,1
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {2, 0}, 2 -> 0}] &, {0}, 11] (* A287345 *)
Flatten[Position[s, 0]] (* A287346 *)
Flatten[Position[s, 1]] (* A287347 *)
Flatten[Position[s, 2]] (* A287348 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 24 2017
STATUS
approved