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A285597
Positions of 0 in A285596; complement of A285598.
3
1, 5, 11, 15, 19, 25, 29, 33, 39, 43, 47, 51, 55, 61, 65, 69, 75, 79, 83, 89, 93, 97, 103, 107, 111, 117, 121, 125, 129, 133, 139, 143, 147, 153, 157, 161, 167, 171, 175, 179, 183, 189, 193, 197, 203, 207, 211, 217, 221, 225, 229, 233, 239, 243, 247, 253
OFFSET
1,2
COMMENTS
Conjecture: a(n)/n -> (5+sqrt(17))/2.
LINKS
EXAMPLE
As a word, A285596 = 011101111101110..., in which 0 is in positions 1,5,11,15,19,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 1, 1, 1}}] &, {0}, 10] (* A285596 *)
Flatten[Position[s, 0]] (* A285597 *)
Flatten[Position[s, 1]] (* A285598 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 01 2017
STATUS
approved