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A002370 a(n)=(n-1)^2 a(n-2)-3C(n-1,3)a(n-4).
(Formerly M4296 N1796)
+0
2
1, 1, 6, 120, 5250, 395010, 45197460, 7299452160, 1580682203100, 441926274289500, 154940341854097800, 66565404923242024800 (list; graph; listen)
OFFSET

0,3

REFERENCES

A. C. Aitken, On the number of distinct terms in the expansion of symmetric and skew determinants, Edinburgh Math. Notes, No. 34 (1944), 1-5.

T. Muir, The Theory of Determinants in the Historical Order of Development. 4 vols., Macmillan, NY, 1906-1923, Vol. 3, p. 282.

I. M. H. Etherington, Some problems of non-associative combinations, Edinburgh Math. Notes, 32 (1940), 1-6.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

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

LINKS

T. Muir, The Theory of Determinants in the Historical Order of Development, 4 vols., Macmillan, NY, 1906-1923, Vol. 2.

CROSSREFS

Cf. A167028.

Sequence in context: A094273 A094278 A093910 this_sequence A012846 A012641 A012795

Adjacent sequences: A002367 A002368 A002369 this_sequence A002371 A002372 A002373

KEYWORD

nonn,easy,more

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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