A352552 a(n) = number of modules with n elements over the ring of integers in the real quadratic field of discriminant 12.

1, 1, 1, 2, 0, 1, 0, 3, 2, 0, 2, 2, 2, 0, 0, 5, 0, 2, 0, 0, 0, 2, 2, 3, 1, 2, 3, 0, 0, 0, 0, 7, 2, 0, 0, 4, 2, 0, 2, 0, 0, 0, 0, 4, 0, 2, 2, 5, 1, 1, 0, 4, 0, 3, 0, 0, 0, 0, 2, 0, 2, 0, 0, 11, 0, 2, 0, 0, 2, 0, 2, 6, 2, 2, 1, 0, 0, 2, 0, 0, 5, 0, 2, 0, 0, 0, 0, 6, 0, 0, 0, 4, 0, 2, 0

Offset

1,4

Comments

See A352550 for comments and PARI code.

Links

Table of n, a(n) for n=1..95.

Crossrefs

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

Sequence in context: A082513 A187495 A187496 * A193056 A244417 A324811

Adjacent sequences: A352549 A352550 A352551 * A352553 A352554 A352555

Keyword

nonn

Author

N. J. A. Sloane, Mar 20 2022

Status

approved