A023555 Self-convolution of A023531.

0, 0, 1, 0, 0, 2, 0, 0, 1, 2, 0, 0, 2, 0, 2, 0, 1, 2, 0, 0, 2, 2, 0, 2, 0, 0, 1, 4, 0, 0, 2, 0, 2, 0, 2, 2, 0, 0, 3, 2, 0, 0, 2, 0, 2, 2, 0, 4, 0, 0, 0, 2, 1, 2, 2, 0, 2, 2, 0, 0, 2, 2, 2, 0, 0, 2, 2, 0, 3, 2, 0, 0, 4, 0, 0, 0, 0, 6, 0, 2, 2, 0, 0, 2, 2, 0, 1, 2, 0, 2

Offset

1,6

Links

Table of n, a(n) for n=1..90.

Crossrefs

Sequence in context: A112172 A093085 A339059 * A357704 A294203 A143380

Adjacent sequences: A023552 A023553 A023554 * A023556 A023557 A023558

Keyword

nonn

Author

Clark Kimberling

Status

approved