A377776 a(n) = A377775(n)/(2*n+1).

1, 1, 3, 1, 1, 3, 1, 1, 3, 7, 1, 3, 1, 5, 3, 1, 1, 3, 1, 5, 5, 1, 3, 3, 1, 1, 3, 7, 3, 15, 7, 1, 3, 1, 1, 9, 1, 1, 3, 1, 9, 5, 13, 1, 3, 3, 1, 3, 7, 1, 3, 9, 1, 3, 3, 1, 3, 1, 7, 3, 67, 5, 17, 1, 1, 3, 1, 1, 5, 9, 1, 3, 19, 5, 5, 1, 21, 9, 15, 1, 3, 1, 3, 9, 1

Offset

0,3

Comments

a(n) = 1 if and only if 2*n+1 is in A000959.

Links

Pontus von Brömssen, Table of n, a(n) for n = 0..9999

Crossrefs

Cf. A000959, A377775, A377778.

Sequence in context: A073310 A174414 A046929 * A068695 A110787 A325982

Adjacent sequences: A377773 A377774 A377775 * A377777 A377778 A377779

Keyword

nonn

Author

Pontus von Brömssen, Nov 07 2024

Status

approved