A005980 Let F(x) = 1 + x + 4x^2 + 9x^3 + ... = g.f. for A002835 (solid partitions restricted to two planes) and expand (1-x)(1-x^2)(1-x^3)...*F(x) in powers of x. (Formerly M1169)

1, 0, 2, 4, 9, 16, 35, 63, 129, 234, 445, 798, 1458, 2568, 4561, 7924, 13770, 23584, 40301, 68097, 114646, 191336, 317893, 524396, 861054, 1405130, 2282651, 3688254, 5933463

Offset

0,3

References

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Table of n, a(n) for n=0..28.

D. E. Knuth, A Note on Solid Partitions, Math. Comp. 24, 955-961, 1970.

Crossrefs

Cf. A002836.

Sequence in context: A131337 A062791 A203320 * A128093 A056331 A056336

Adjacent sequences: A005977 A005978 A005979 * A005981 A005982 A005983

Keyword

nonn,more

Author

N. J. A. Sloane.

Status

approved