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A060705 Singular n X n matrices over GF(3). 2
1, 33, 8451, 18785601, 371722135203, 65965023738046161, 105230885027939446251843, 1510241390481066772867454516481, 195045439041853604357302110432234667203 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..45

FORMULA

For n >= 1, a(n) = 3^(n^2) - A053290(n) = 3^(n^2) - (3^n - 1)*(3^n - 3)*...*(3^n - 3^(n-1)).

MAPLE

for n from 1 to 20 do printf(`%d, `, 3^(n^2) - product(3^n - 3^j, j=0..n-1)) od:

PROG

(PARI) a(n)={3^(n^2) - prod(j=0, n-1, 3^n - 3^j)} \\ Harry J. Smith, Jul 09 2009

CROSSREFS

Cf. A053290.

Sequence in context: A099828 A099827 A269793 * A061687 A116056 A232148

Adjacent sequences:  A060702 A060703 A060704 * A060706 A060707 A060708

KEYWORD

nonn

AUTHOR

Ahmed Fares (ahmedfares(AT)my-deja.com), Apr 20 2001

EXTENSIONS

More terms from James A. Sellers, Apr 23 2001

STATUS

approved

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Last modified November 19 18:39 EST 2019. Contains 329323 sequences. (Running on oeis4.)