A352564 a(n) = number of modules with n elements over the ring of integers in the imaginary quadratic field of discriminant -8.

1, 1, 2, 2, 0, 2, 0, 3, 5, 0, 2, 4, 0, 0, 0, 5, 2, 5, 2, 0, 0, 2, 0, 6, 1, 0, 10, 0, 0, 0, 0, 7, 4, 2, 0, 10, 0, 2, 0, 0, 2, 0, 2, 4, 0, 0, 0, 10, 1, 1, 4, 0, 0, 10, 0, 0, 4, 0, 2, 0, 0, 0, 0, 11, 0, 4, 2, 4, 0, 0, 0, 15, 2, 0, 2, 4, 0, 0, 0, 0, 20, 2, 2, 0, 0, 2, 0, 6, 2, 0, 0, 0, 0, 0, 0, 14, 2, 1, 10, 2, 0, 4, 0, 0, 0, 0, 2, 20, 0, 0, 0, 0, 2

Offset

1,3

Comments

See A352550 for comments and PARI code.

Links

Table of n, a(n) for n=1..113.

Crossrefs

Cf. A038540, A038541, A248107, A352550-A352567.

Sequence in context: A243865 A120439 A248512 * A353596 A182122 A104624

Adjacent sequences: A352561 A352562 A352563 * A352565 A352566 A352567

Keyword

nonn

Author

N. J. A. Sloane, Mar 21 2022

Status

approved