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A285626
Positions of 0 in A285625; complement of A285627.
3
2, 4, 8, 10, 14, 16, 18, 20, 22, 24, 28, 30, 34, 36, 38, 40, 42, 44, 48, 50, 54, 56, 60, 62, 66, 68, 72, 74, 78, 80, 82, 84, 86, 88, 92, 94, 98, 100, 102, 104, 106, 108, 112, 114, 118, 120, 124, 126, 130, 132, 136, 138, 142, 144, 146, 148, 150, 152, 156, 158
OFFSET
1,1
COMMENTS
Conjecture: a(n)/n -> (3 + sqrt(5))/2.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000 [a(7783)=20380 -> 20378 and following corrected by Georg Fischer, Jun 04 2020]
EXAMPLE
As a word, A285625 = 101011101011..., in which 0 is in positions 2,4,8,10,14,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 0, 1, 0}}] &, {0}, 10] (* A285625 *)
Flatten[Position[s, 0]] (* A285626 *)
Flatten[Position[s, 1]] (* A285627 *)
CROSSREFS
Sequence in context: A104197 A323440 A350804 * A284853 A189792 A286909
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 01 2017
STATUS
approved