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A284589
Positions of 0 in A284588; complement of A284590.
4
2, 4, 7, 9, 11, 13, 16, 18, 21, 23, 25, 27, 30, 32, 35, 37, 40, 42, 45, 47, 49, 51, 54, 56, 59, 61, 63, 65, 68, 70, 73, 75, 77, 79, 82, 84, 87, 89, 91, 93, 96, 98, 101, 103, 106, 108, 111, 113, 115, 117, 120, 122, 125, 127, 129, 131, 134, 136, 139, 141, 144
OFFSET
1,1
COMMENTS
Conjecture: a(n)/n -> (3 + sqrt(3))/2.
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