



1, 2, 5, 6, 8, 9, 10, 11, 14, 15, 16, 17, 19, 20, 23, 24, 26, 27, 28, 29, 31, 32, 35, 36, 37, 38, 41, 42, 44, 45, 46, 47, 50, 51, 52, 53, 55, 56, 59, 60, 61, 62, 65, 66, 68, 69, 70, 71, 73, 74, 77, 78, 80, 81, 82, 83, 86, 87, 88, 89, 91, 92, 95, 96, 98, 99
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OFFSET

1,2


COMMENTS

The number d(n) = 3n/2  a(n) is in {1/2, 0, 1/2, 1} for n >= 1. Specifically,
d(n) = 1/2 if n is in A129771; d(n) = 1/2 if n is in A092246;
d(n) = 0 if n is in 2*A181155; d(n) = 1 if n is in 2*A026147.


LINKS

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


MATHEMATICA

s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];
w[n_] := StringReplace[w[n  1], {"00" > "001", "1" > "100"}]
Table[w[n], {n, 0, 8}]
st = ToCharacterCode[w[11]]  48 (* A286063 *)
Flatten[Position[st, 0]] (* A286727 *)
Flatten[Position[st, 1]] (* A286728 *)


CROSSREFS

Cf. A286063, A286728.
Sequence in context: A126971 A175354 A224778 * A090946 A299417 A047442
Adjacent sequences: A286724 A286725 A286726 * A286728 A286729 A286730


KEYWORD

nonn,easy


AUTHOR

Clark Kimberling, Jun 05 2017


STATUS

approved



