This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A114934 #12 Dec 17 2022 08:25:09 %S A114934 0,0,0,21,2773,148365,5878391,204819447,6721694469,214306917321, %T A114934 6736603947907,210284186632443,6541309609120385,203129541349695597, %U A114934 6302428271530970943,195459285517696665759,6060542952694406463421 %N A114934 Number of connected (5,n)-hypergraphs (without empty edges and without multiple edges). %H A114934 G. C. Greubel, <a href="/A114934/b114934.txt">Table of n, a(n) for n = 0..670</a> %H A114934 Goran Kilibarda and Vladeta Jovovic, <a href="https://arxiv.org/abs/1411.4187">Enumeration of some classes of T_0-hypergraphs</a>, arXiv:1411.4187 [math.CO], 2014. %F A114934 E.g.f.: (1/5!)*(exp(31*x) - 5*exp(16*x) - 10*exp(15*x) - 10*exp(10*x) + 20*exp(9*x) + 40*exp(8*x) + 65*exp(7*x) - 30*exp(6*x) - 96*exp(5*x) - 45*exp(4*x) + 20*exp(3*x) + 50*exp(2*x) + 24*exp(x) - 24). %t A114934 With[{nmax = 50}, CoefficientList[Series[(1/5!)*(Exp[31*x] - 5*Exp[16*x] - 10*Exp[15*x] - 10*Exp[10*x] + 20*Exp[9*x] + 40*Exp[8*x] + 65*Exp[7*x] - 30*Exp[6*x] - 96*Exp[5*x] - 45*Exp[4*x] + 20*Exp[3*x] + 50*Exp[2*x] + 24*Exp[x] - 24), {x, 0, nmax}], x] Range[0, nmax]!] (* _G. C. Greubel_, Oct 07 2017 *) %o A114934 (PARI) x='x+O('x^50); concat([0,0,0], Vec(serlaplace((1/5!)*(exp(31*x) - 5*exp(16*x) - 10*exp(15*x) - 10*exp(10*x) + 20*exp(9*x) + 40*exp(8*x) + 65*exp(7*x) - 30*exp(6*x) - 96*exp(5*x) - 45*exp(4*x) + 20*exp(3*x) + 50*exp(2*x) + 24*exp(x) - 24)))) \\ _G. C. Greubel_, Oct 07 2017 %Y A114934 Cf. A002501, A002502, A093732, A093732, A114933, A114935, A114936, A114937. %K A114934 easy,nonn %O A114934 0,4 %A A114934 Goran Kilibarda and _Vladeta Jovovic_, Jan 08 2006