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A003577 Dowling numbers. +0
1
1, 2, 9, 63, 536, 5307, 60389, 775988, 11062391, 172638727, 2921519374, 53221709973, 1037320865141, 21517178350762, 472862758184789, 10966587174511443, 267502464814857936, 6842498829509972687 (list; graph; listen)
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: A113662 A052820 A100262 this_sequence A085928 A130169 A076944

Adjacent sequences: A003574 A003575 A003576 this_sequence A003578 A003579 A003580

KEYWORD

nonn

AUTHOR

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

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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