A377777 Least ludic multiple of n, or 0 if no such multiple exists.

1, 2, 3, 0, 5, 0, 7, 0, 0, 0, 11, 0, 13, 0, 0, 0, 17, 0, 209, 0, 0, 0, 23, 0, 25, 0, 0, 0, 29, 0, 341, 0, 0, 0, 175, 0, 37, 0, 0, 0, 41, 0, 43, 0, 0, 0, 47, 0, 931, 0, 0, 0, 53, 0, 1045, 0, 0, 0, 1829, 0, 61, 0, 0, 0, 1105, 0, 67, 0, 0, 0, 71, 0, 803, 0, 0, 0

Offset

1,2

Comments

a(n) is the least multiple of n that is in A003309, or 0 if no multiple of n is in A003309.

a(n) = 0 if n > 3 is a multiple of 2 or a multiple of 3.

Links

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

Formula

a(n) = n*A377778(n).

Crossrefs

Cf. A003309, A377775, A377778.

Sequence in context: A061397 A331045 A331044 * A093438 A375548 A211396

Adjacent sequences: A377774 A377775 A377776 * A377778 A377779 A377780

Keyword

nonn

Author

Pontus von Brömssen, Nov 07 2024

Status

approved