A060705 Singular n X n matrices over GF(3).

1, 33, 8451, 18785601, 371722135203, 65965023738046161, 105230885027939446251843, 1510241390481066772867454516481, 195045439041853604357302110432234667203

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: A373876 A336197 A336261 * A061687 A116056 A337807

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