cp's OEIS Frontend

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.

A160195 Numerator of Hermite(n, 11/28).

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%I A160195 #13 Sep 08 2022 08:45:44
%S A160195 1,11,-271,-11605,191041,20298091,-151161359,-49403884981,
%T A160195 -128655965695,153515367677771,2142567291427441,-578212001091160469,
%U A160195 -15599082172637890751,2548319349233802047915,107524435593334513794161,-12802407797068425987221749
%N A160195 Numerator of Hermite(n, 11/28).
%H A160195 G. C. Greubel, <a href="/A160195/b160195.txt">Table of n, a(n) for n = 0..417</a>
%F A160195 From _G. C. Greubel_, Sep 24 2018: (Start)
%F A160195 a(n) = 14^n * Hermite(n, 11/28).
%F A160195 E.g.f.: exp(11*x - 196*x^2).
%F A160195 a(n) = numerator(Sum_{k=0..floor(n/2)} (-1)^k*n!*(11/14)^(n-2*k)/(k!*(n-2*k)!)). (End)
%e A160195 Numerators of 1, 11/14, -271/196, -11605/2744, 191041/38416, ...
%t A160195 Table[14^n*HermiteH[n, 11/28], {n, 0, 30}] (* _G. C. Greubel_, Sep 24 2018 *)
%o A160195 (PARI) a(n)=numerator(polhermite(n, 11/28)) \\ _Charles R Greathouse IV_, Jan 29 2016
%o A160195 (PARI) x='x+O('x^30); Vec(serlaplace(exp(11*x - 196*x^2))) \\ _G. C. Greubel_, Sep 24 2018
%o A160195 (Magma) [Numerator((&+[(-1)^k*Factorial(n)*(11/14)^(n-2*k)/( Factorial(k) *Factorial(n-2*k)): k in [0..Floor(n/2)]])): n in [0..30]]; // _G. C. Greubel_, Sep 24 2018
%Y A160195 Cf. A001023 (denominators).
%K A160195 sign,frac
%O A160195 0,2
%A A160195 _N. J. A. Sloane_, Nov 12 2009