login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A159500
Numerator of Hermite(n, 7/13).
1
1, 14, -142, -11452, -16340, 15254344, 241175416, -27559353808, -956451987568, 61130164870880, 3765349254374176, -153905067702335936, -16154239475595889472, 398079601942332103808, 76554842682960987793280, -811944878829661686113536, -399500280706227471717519104
OFFSET
0,2
LINKS
FORMULA
From G. C. Greubel, Jun 12 2018: (Start)
a(n) = 13^n * Hermite(n,7/13).
E.g.f.: exp(14*x-169*x^2).
a(n) = numerator(Sum_{k=0..floor(n/2)} (-1)^k*n!*(14/31)^(n-2*k)/(k!*(n-2*k)!)). (End)
MATHEMATICA
Numerator[Table[HermiteH[n, 7/13], {n, 0, 50}]] (* Vladimir Joseph Stephan Orlovsky, Apr 14 2011 *)
PROG
(PARI) a(n)=numerator(polhermite(n, 7/13)) \\ Charles R Greathouse IV, Jan 29 2016
(Magma) [Numerator((&+[(-1)^k*Factorial(n)*(14/13)^(n-2*k)/( Factorial(k) *Factorial(n-2*k)): k in [0..Floor(n/2)]])): n in [0..30]]; // G. C. Greubel, Jun 12 2018
CROSSREFS
Sequence in context: A039916 A378625 A241217 * A167834 A238473 A016233
KEYWORD
sign,frac
AUTHOR
N. J. A. Sloane, Nov 12 2009
STATUS
approved