



1, 3, 5, 7, 9, 10, 12, 14, 16, 18, 20, 22, 24, 25, 27, 29, 31, 33, 34, 36, 38, 40, 42, 44, 46, 48, 49, 51, 53, 55, 57, 59, 61, 63, 64, 66, 68, 70, 72, 73, 75, 77, 79, 81, 83, 85, 87, 88, 90, 92, 94, 96, 97, 99, 101, 103, 105, 107, 109, 111, 112, 114, 116
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


COMMENTS

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


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" > "010", "1" > "101"}]
st = ToCharacterCode[w1]  48 (* A287773 *)
Flatten[Position[st, 0]] (* A287774 *)
Flatten[Position[st, 1]] (* A287777 *)


CROSSREFS

Cf. A287773, A287777.
Sequence in context: A329837 A214315 A249098 * A308412 A327254 A054684
Adjacent sequences: A287771 A287772 A287773 * A287775 A287776 A287777


KEYWORD

nonn,easy


AUTHOR

Clark Kimberling, Jun 03 2017


STATUS

approved



