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A086752 Number of n X n matrices over GF(3) with rank n-1. 1
1, 32, 8112, 17971200, 355207057920, 63010655570903040, 100505356319291594711040, 1442361950110091891786121216000, 186276322602412236974585775503690956800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..9.

FORMULA

For n>=2: a(n) = product j=0...n-2 (3^n - 3^j)^2 / (3^(n-1)- 3^j).

a(n) = (3^n-1)/2*product_{j = 0...n-2} 3^n-3^j. - David Wasserman, Mar 28 2005

CROSSREFS

Cf. A086699, A053290, A060868.

Sequence in context: A248720 A069052 A221614 * A248001 A159679 A139568

Adjacent sequences:  A086749 A086750 A086751 * A086753 A086754 A086755

KEYWORD

nonn,easy

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Jul 31 2003

EXTENSIONS

More terms from David Wasserman, Mar 28 2005

STATUS

approved

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Last modified December 16 09:06 EST 2019. Contains 330020 sequences. (Running on oeis4.)