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A053996 Number of bases of n-dimensional vector space over GF(4). 0
1, 3, 90, 30240, 123379200, 6462306385920, 4516376686991769600, 43295772825884473845350400, 5810971590951606258595918774272000, 11092372326294974332542866301794421571584000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..9.

FORMULA

a(n)=(4^n - 1)(4^n - 4)...(4^n - 4^(n-1))/n!

CROSSREFS

Cf. A053291, A053601.

Sequence in context: A209495 A168408 A132556 * A218143 A203477 A115704

Adjacent sequences:  A053993 A053994 A053995 * A053997 A053998 A053999

KEYWORD

easy,nonn,changed

AUTHOR

Vladeta Jovovic, Apr 05 2000

STATUS

approved

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Last modified May 23 07:10 EDT 2013. Contains 225585 sequences.