id:A007104 - OEIS Search Results

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Number of elements (a b, c d) in GL(2,Z) with det = -1, trace n and 0 <= a <= {b, c} <= d.

+0
3

1, 1, 1, 2, 1, 4, 1, 4, 4, 4, 2, 10, 1, 5, 7, 12, 1, 10, 4, 10, 12, 4, 6, 24, 4, 12, 7, 10, 5, 26, 6, 20, 13, 12, 7, 30, 11, 4, 15, 32 (list; graph; listen)

	OFFSET	`1,4`
	CROSSREFS	`Sequence in context: A051953 A079277 A066452 this_sequence A102627 A088296 A093890` `Adjacent sequences: A007101 A007102 A007103 this_sequence A007105 A007106 A007107`
	KEYWORD	`nonn`
	AUTHOR	`John Lewis (frc.mass.edu)`

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

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