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A005141 Number of genera of forms with |determinant| = n.
(Formerly M0333)
0
2, 2, 4, 9, 4, 4, 4, 10, 8, 4, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
REFERENCES
J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 387.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
CROSSREFS
Sequence in context: A124439 A082836 A201376 * A220369 A220313 A021982
KEYWORD
nonn,nice,more
AUTHOR
STATUS
approved

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Last modified May 24 12:09 EDT 2024. Contains 372773 sequences. (Running on oeis4.)