A003840 Order of (usually) simple Chevalley group D_n (9).

2, 129600, 50759843097600, 129182006871144805294080000, 2154683673871373733440812330742751559680000, 235766858527753399707968381023024646011879419539171573760000000

Offset

1,1

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 [for best online version see https://oeis.org/wiki/Welcome#Links_to_Other_Sites], 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.

Links

Table of n, a(n) for n=1..6.

Formula

a(n) = d(9,n) where d(q, n) is defined in A003837. - Sean A. Irvine, Sep 17 2015

Crossrefs

Sequence in context: A296104 A170995 A319022 * A122540 A324438 A167518

Adjacent sequences: A003837 A003838 A003839 * A003841 A003842 A003843

Keyword

nonn,easy

Author

N. J. A. Sloane

Extensions

a(6) from Sean A. Irvine, Sep 17 2015

Status

approved