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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
OFFSET
0,2
LINKS
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
KEYWORD
nonn
STATUS
approved