A003923 - OEIS

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A003923

Order of universal Chevalley group B_n (2) or symplectic group Sp(2n,2).

1, 6, 720, 1451520, 47377612800, 24815256521932800, 208114637736580743168000, 27930968965434591767112450048000, 59980383884075203672726385914533642240000 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985, p. xvi.` `H. S. M. Coxeter and W. O. J. Moser, Generators and Relations for Discrete Groups, 4th ed., Springer-Verlag, NY, reprinted 1984, p. 131.` `B. Runge, On Siegel modular forms I, J. Reine Angew. Math., 436 (1993), 57-85.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..20`
	MAPLE	`for m from 0 to 50 do N:=2^(m^2)*mul( 4^i-1, i=1..m); lprint(N); od:`
	CROSSREFS	`A bisection of A003053.` `Sequence in context: A014525 A188960 A100732 * A002204 A052295 A168467` `Adjacent sequences: A003920 A003921 A003922 * A003924 A003925 A003926`
	KEYWORD	`nonn,easy,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com). Edited by N. J. A. Sloane (njas(AT)research.att.com), Dec 30 2008.`

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Last modified February 15 05:15 EST 2012. Contains 205694 sequences.