A116986 When convolved with itself and doubled, gives the sequence A000609.

1, 1, 3, 23, 443, 23131, 3732309, 2090705825, 4388282355347

Offset

0,3

Comments

Do these numbers have any other interpretation? Are they always integers?

Links

Table of n, a(n) for n=0..8.

Crossrefs

Sequence in context: A133338 A298466 A358069 * A271962 A268668 A171777

Adjacent sequences: A116983 A116984 A116985 * A116987 A116988 A116989

Keyword

nonn

Author

Paul D. Hanna, Apr 02 2006

Status

approved