|
%I #12 Sep 08 2022 08:45:43
%S 1,14,34,-4060,-73364,1603784,81877816,-412588624,-98625684080,
%T -846044720416,131951621302816,3217915145313344,-190086977127231296,
%U -8916844722270378880,275487347718163805056,24080226698163512570624,-332311081180848870297344
%N Numerator of Hermite(n, 7/9).
%H G. C. Greubel, <a href="/A159242/b159242.txt">Table of n, a(n) for n = 0..450</a>
%F From _G. C. Greubel_, Jun 28 2018: (Start)
%F a(n) = 9^n * Hermite(n, 7/9).
%F E.g.f.: exp(14*x-81*x^2).
%F a(n) = numerator(Sum_{k=0..floor(n/2)} (-1)^k*n!*(14/9)^(n-2*k)/(k!*(n-2*k)!)). (End)
%t Numerator[Table[HermiteH[n,7/9],{n,0,50}]] (* _Vladimir Joseph Stephan Orlovsky_, Apr 02 2011*)
%o (PARI) a(n)=numerator(polhermite(n,7/9)) \\ _Charles R Greathouse IV_, Jan 29 2016
%o (Magma) [Numerator((&+[(-1)^k*Factorial(n)*(14/9)^(n-2*k)/( Factorial(k) *Factorial(n-2*k)): k in [0..Floor(n/2)]])): n in [0..30]]; // _G. C. Greubel_, Jun 28 2018
%Y Cf. A159030, A159197.
%K sign,frac
%O 0,2
%A _N. J. A. Sloane_, Nov 12 2009
|
