A305388 Indicator function of A140103.

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

Offset

1

Comments

a(n) = 1 iff n is in A140103.

Links

Table of n, a(n) for n=1..98.

Formula

A305385(n)+A305386(n) = A305387(n)+A305388(n) = 1 for all n.

Crossrefs

The indicator functions for A140100, A140101, A140102, A140103 are given in A305385, A305386, A305387, A305388.

Sequence in context: A025125 A147873 A103589 * A123740 A188472 A286044

Adjacent sequences: A305385 A305386 A305387 * A305389 A305390 A305391

Keyword

nonn

Author

N. J. A. Sloane, Jun 21 2018

Status

approved