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A003927
Order of simple Chevalley group B_n (3).
10
25920, 4585351680, 65784756654489600, 76457792934119864313446400, 7197966128645938515382156481789952000, 54888780931741129517511777421088069718405808128000
OFFSET
2,1
FORMULA
a(n) = b(3,n) where b(q,n) = q^(n^2) * Product_{k=1..n}(q^(2*k)-1) / gcd(2, q-1). - Sean A. Irvine, Sep 22 2015
CROSSREFS
Cf. A003920.
Sequence in context: A224575 A237962 A237744 * A238043 A236599 A326931
KEYWORD
nonn
STATUS
approved