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A287344
Positions of 2 in A287341.
4
3, 5, 9, 11, 13, 15, 23, 25, 35, 37, 41, 43, 45, 47, 55, 57, 65, 67, 75, 77, 93, 95, 99, 101, 111, 113, 117, 119, 121, 123, 131, 133, 149, 151, 155, 157, 167, 169, 173, 175, 179, 181, 185, 187, 189, 191, 199, 201, 211, 213, 217, 219, 221, 223, 231, 233, 241
OFFSET
1,1
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {2, 0}, 2 -> 0}] &, {0}, 10] (* A287341 *)
Flatten[Position[s, 0]] (* A287342 *)
Flatten[Position[s, 1]] (* A287343 *)
Flatten[Position[s, 2]] (* A287344 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 24 2017
STATUS
approved