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A027397 Number of labeled servers of dimension 10. 1
1, 10, 145, 2590, 53935, 1270798, 33213955, 949441810, 29371429345, 975236890330, 34526021240809, 1296190060488190, 51368290426260655, 2140624557899891710, 93487359214816335115, 4266459267720049656562 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

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..10 ) ).

MATHEMATICA

Table[n!*SeriesCoefficient[E^(Sum[((1+x)^i - 1)/i, {i, 1, 10}]), {x, 0, n}], {n, 0, 20}] (* Vincenzo Librandi, Dec 31 2012 *)

CROSSREFS

Sequence in context: A059968 A255522 A113354 * A305969 A081697 A134526

Adjacent sequences:  A027394 A027395 A027396 * A027398 A027399 A027400

KEYWORD

nonn

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified September 24 09:10 EDT 2021. Contains 347630 sequences. (Running on oeis4.)