

A005980


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


5



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
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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, 955961, 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



