A003938 Order of (usually) simple Chevalley group B_2(q), q = prime power.

720, 25920, 979200, 4680000, 138297600, 1056706560, 1721606400, 12860654400, 68518981440, 1095199948800, 1004497044480, 3057017889600, 20674026236160, 47607300000000, 102804157834560, 210103196385600

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, 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..16.

Formula

a(n) = b(A000961(n + 1), 2) where b(q,n) is defined in A003927. - Sean A. Irvine, Sep 22 2015

Crossrefs

Sequence in context: A126781 A090008 A223857 * A052720 A166759 A181504

Adjacent sequences: A003935 A003936 A003937 * A003939 A003940 A003941

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved