login
A287074
Positions of 1 in A287072.
4
2, 4, 7, 9, 12, 14, 16, 18, 21, 23, 25, 28, 30, 32, 34, 37, 39, 41, 44, 46, 49, 51, 53, 56, 58, 60, 62, 65, 67, 69, 72, 74, 77, 79, 81, 83, 86, 88, 90, 93, 95, 98, 100, 102, 105, 107, 109, 111, 114, 116, 118, 121, 123, 126, 128, 130, 132, 135, 137, 139, 142
OFFSET
1,1
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 10] (* A287072 *)
Flatten[Position[s, 0]] (* A287073 *)
Flatten[Position[s, 1]] (* A287074 *)
Flatten[Position[s, 2]] (* A287075 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 21 2017
STATUS
approved