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A284880
Positions of 1 in A284878; complement of A284879.
3
2, 4, 5, 8, 10, 11, 14, 15, 18, 20, 22, 23, 26, 28, 29, 32, 33, 36, 38, 40, 41, 44, 45, 48, 50, 52, 53, 56, 58, 59, 62, 64, 65, 68, 69, 72, 74, 76, 77, 80, 82, 83, 86, 87, 90, 92, 94, 95, 98, 99, 102, 104, 106, 107, 110, 112, 113, 116, 118, 119, 122, 123
OFFSET
1,1
LINKS
FORMULA
2n - a(n) = A189629(n) for n >= 1.
EXAMPLE
As a word, A284878 = 010110..., in which 1 is in positions 2,4,5,8,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 1, 1, 0}}] &, {0}, 7] (* A284878 *)
Flatten[Position[s, 0]] (* A284879 *)
Flatten[Position[s, 1]] (* A284880 *)
CROSSREFS
Sequence in context: A324700 A191987 A138007 * A047261 A286687 A190807
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 15 2017
STATUS
approved