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 A159546 Numerator of Hermite(n, 5/18). 5
 1, 5, -137, -2305, 55057, 1768925, -35751545, -1898152825, 31051487905, 2615263500725, -32196751861865, -4397710630483825, 35386058665424305, 8726079758987677325, -30892640754445199705, -19945212097156278171625, -24656943452479555574975 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS G. C. Greubel, Table of n, a(n) for n = 0..450 FORMULA From G. C. Greubel, Jun 10 2018: (Start) a(n) = 9^n * Hermite(n,5/18). E.g.f.: exp(5*x-81*x^2). a(n) = numerator(Sum_{k=0..floor(n/2)} (-1)^k*n!*(5/9)^(n-2*k)/(k!*(n-2*k)!)). (End) MATHEMATICA Numerator[Table[HermiteH[n, 5/18], {n, 0, 30}]] (* Vladimir Joseph Stephan Orlovsky, May 20 2011 *) PROG (PARI) a(n)=numerator(polhermite(n, 5/18)) \\ Charles R Greathouse IV, Jan 29 2016 (Magma) [Numerator((&+[(-1)^k*Factorial(n)*(5/9)^(n-2*k)/( Factorial(k) *Factorial(n-2*k)): k in [0..Floor(n/2)]])): n in [0..30]]; // G. C. Greubel, Jun 10 2018 CROSSREFS Cf. A159545. Sequence in context: A279307 A265875 A248523 * A339566 A012215 A012142 Adjacent sequences: A159543 A159544 A159545 * A159547 A159548 A159549 KEYWORD sign,frac AUTHOR N. J. A. Sloane, Nov 12 2009 STATUS approved

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Last modified December 2 18:40 EST 2022. Contains 358510 sequences. (Running on oeis4.)