id:A051680 - OEIS Search Results

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Number of n X n invertible matrices A over GF(3) such that A-I is invertible.

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1, 27, 6291, 13589289, 266377183929, 47123189360124723, 75095231825148137471259, 1077370264330489309698453375441, 139124702920688202983704723564457669361 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) = 3^binomial(n,2)b(n), with b(0)=1, b(n)=(3^n-1)b(n-1)+(-1)^(n). - Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 20 2006`
	CROSSREFS	`Cf. A002820.` `Sequence in context: A046367 A059795 A123395 this_sequence A013828 A001321 A111415` `Adjacent sequences: A051677 A051678 A051679 this_sequence A051681 A051682 A051683`
	KEYWORD	`nonn,nice`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Mar 17 2000`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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