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A284590
Positions of 1 in A284588; complement of A284589.
4
1, 3, 5, 6, 8, 10, 12, 14, 15, 17, 19, 20, 22, 24, 26, 28, 29, 31, 33, 34, 36, 38, 39, 41, 43, 44, 46, 48, 50, 52, 53, 55, 57, 58, 60, 62, 64, 66, 67, 69, 71, 72, 74, 76, 78, 80, 81, 83, 85, 86, 88, 90, 92, 94, 95, 97, 99, 100, 102, 104, 105, 107, 109, 110
OFFSET
1,2
COMMENTS
Conjecture: a(n)/n -> sqrt(3).
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1}, 1 -> {0, 1, 0, 1}}] &, {0}, 7] (* A284588 *)
Flatten[Position[s, 0]] (* A284589 *)
Flatten[Position[s, 1]] (* A284590 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 07 2017
STATUS
approved