A003580 - OEIS

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A003580

Dowling numbers.

1, 2, 12, 120, 1424, 19488, 307904, 5539712, 111259904, 2454487552, 58847153152, 1522019629056, 42209521995776, 1248370355347456, 39186678731423744, 1300179383923212288, 45436201241711542272 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`Benoumhani, Moussa; On Whitney numbers of Dowling lattices. Discrete Math. 159 (1996), no. 1-3, 13-33.`
	FORMULA	`E.g.f.: exp(z + 1/8 exp(8 z) - 1/8).`
	CROSSREFS	`Sequence in context: A089431 A119701 A127112 * A052580 A134095 A204042` `Adjacent sequences: A003577 A003578 A003579 * A003581 A003582 A003583`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.