



3, 4, 5, 9, 12, 13, 14, 18, 19, 20, 24, 27, 28, 29, 33, 36, 37, 38, 42, 43, 44, 48, 51, 52, 53, 57, 58, 59, 63, 66, 67, 68, 72, 75, 76, 77, 81, 82, 83, 87, 90, 91, 92, 96, 99, 100, 101, 105, 106, 107, 111, 114, 115, 116, 120, 121, 122, 126, 129, 130, 131
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

2 < n*r  a(n) < 2 for n >= 1, where r = (15 + 3*sqrt(5))/10.


LINKS

Clark Kimberling, Table of n, a(n) for n = 1..10000


MATHEMATICA

s = Nest[Flatten[# /. {0 > {0, 1}, 1 > {0}}] &, {0}, 10] (* A003849 *)
w = StringJoin[Map[ToString, s]]
w1 = StringReplace[w, {"0" > "001", "1" > "110"}]
st = ToCharacterCode[w1]  48 (* A287790 *)
Flatten[Position[st, 0]] (* A287791 *)
Flatten[Position[st, 1]] (* A287792 *)


CROSSREFS

Cf. A287790, A287791.
Sequence in context: A039885 A239197 A010422 * A050033 A243654 A063953
Adjacent sequences: A287789 A287790 A287791 * A287793 A287794 A287795


KEYWORD

nonn,easy


AUTHOR

Clark Kimberling, Jun 03 2017


STATUS

approved



