# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a027395 Showing 1-1 of 1 %I A027395 #16 Jun 01 2014 02:15:41 %S A027395 1,8,92,1296,21204,391392,7994736,178242624,4292944992,110800827648, %T A027395 3044857866624,88617231585792,2719329626619648,87650060321746944, %U A027395 2957815082168303616,104203601012012802048,3822969716887701993984 %N A027395 Number of labeled servers of dimension 8. %H A027395 Vincenzo Librandi, Table of n, a(n) for n = 0..200 %H A027395 R. Donaghey, Binomial self-inverse sequences and tangent coefficients, J. Combin. Theory, Series A, 21 (1976), 155-163. %F A027395 E.g.f.: exp( sum(k=1..8, ((1+x)^k-1)/k ) ). %t A027395 Table[n!*SeriesCoefficient[E^(Sum[((1 + x)^i - 1)/i, {i, 1, 8}]), {x, 0, n}], {n, 0, 20}] (* _Vincenzo Librandi_, Dec 31 2012 *) %K A027395 nonn %O A027395 0,2 %A A027395 _Olivier Gérard_ # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE