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Search: id:A027404
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A027404 Number of labeled servers of dimension 17. +0
1
1, 17, 425, 13209, 481593, 19960329, 921249873, 46658112705, 2564687821041, 151696177306497, 9588646038606201, 644058017836810857, 45753059704756733865, 3423681133127801126649, 268929096702949443999393 (list; graph; listen)
OFFSET

0,2

REFERENCES

R. Donaghey, Binomial self-inverse sequences and tangent coefficients, J. Combin. Theory, Series A, 21 (1976), 155-163.

FORMULA

E.g.f.: Exp[ Sum[ ((1+x)^i-1)/i, {i, 1, 17} ] ]

CROSSREFS

Sequence in context: A114357 A142997 A134940 this_sequence A053114 A035022 A023150

Adjacent sequences: A027401 A027402 A027403 this_sequence A027405 A027406 A027407

KEYWORD

nonn

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified December 3 16:57 EST 2008. Contains 151279 sequences.


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