A189129 Zero-one sequence based on the sequence (5n-3): a(A016873(k))=a(k); a(A047207(k))=1-a(k), a(1)=0.

1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0

Offset

1

Links

Table of n, a(n) for n=1..135.

Mathematica

r=5n-3; u[n_] := Floor[n*r];  (*A016873*)
a[1] = 0; h = 128;
c = (u[#1] &) /@ Range[2h];
d = (Complement[Range[Max[#1]], #1] &)[c]; (*A047207*)
Table[a[d[[n]]] = 1 - a[n], {n, 1, h - 1}]; (*A189129*)
Table[a[c[[n]]] = a[n], {n, 1, h}]   (*A189129*)
Flatten[Position[%, 0]]  (*A189130*)
Flatten[Position[%%, 1]] (*A189131*)

Crossrefs

Cf. A188967, A189129, A047207.

Sequence in context: A118268 A143220 A189163 * A267269 A376583 A187972

Adjacent sequences: A189126 A189127 A189128 * A189130 A189131 A189132

Keyword

nonn

Author

Clark Kimberling, Apr 17 2011

Status

approved