A377778 a(n) = A377777(n)/n.

1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 11, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 11, 0, 0, 0, 5, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 19, 0, 0, 0, 1, 0, 19, 0, 0, 0, 31, 0, 1, 0, 0, 0, 17, 0, 1, 0, 0, 0, 1, 0, 11, 0, 0, 0, 1, 0, 7, 0, 0, 0, 1, 0, 7

Offset

1,19

Comments

a(n) = 1 if and only if n is in A003309.

Links

Pontus von Brömssen, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A003309, A377776, A377777.

Sequence in context: A321797 A113043 A110408 * A179920 A216726 A323169

Adjacent sequences: A377775 A377776 A377777 * A377779 A377780 A377781

Keyword

nonn

Author

Pontus von Brömssen, Nov 07 2024

Status

approved