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A003577 Dowling numbers. 0
1, 2, 9, 63, 536, 5307, 60389, 775988, 11062391, 172638727, 2921519374, 53221709973, 1037320865141, 21517178350762, 472862758184789, 10966587174511443, 267502464814857936, 6842498829509972687 (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 + 1/5 exp(5 z) - 1/5).

CROSSREFS

Sequence in context: A052820 A100262 A166886 * A085928 A130169 A167913

Adjacent sequences:  A003574 A003575 A003576 * A003578 A003579 A003580

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 13 19:19 EST 2012. Contains 205536 sequences.