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A074742 (n^3+6*n^2-n+12)/6. +0
2
2, 3, 7, 15, 28, 47, 73, 107, 150, 203, 267, 343, 432, 535, 653, 787, 938, 1107, 1295, 1503, 1732, 1983, 2257, 2555, 2878, 3227, 3603, 4007, 4440, 4903, 5397, 5923, 6482, 7075, 7703, 8367, 9068, 9807, 10585, 11403, 12262, 13163, 14107, 15095, 16128, 17207, 18333 (list; graph; listen)
OFFSET

0,1

REFERENCES

A. Schultze, Advanced Algebra, Macmillan, London, 1910; p. 552.

FORMULA

G.f.: (2-5x+7x^2-3x^3)/(1-x)^4. a(n)=A027965(n+1), n>0. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 23 2008]

CROSSREFS

Sequence in context: A066044 A066460 A006884 this_sequence A020873 A049958 A153010

Adjacent sequences: A074739 A074740 A074741 this_sequence A074743 A074744 A074745

KEYWORD

nonn

AUTHOR

Susanna Cuyler (BRUGGED(AT)aol.com), Sep 06 2002

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.


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