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A159005 Numerator of Hermite(n, 5/7). 1
1, 10, 2, -1940, -19988, 560600, 15400120, -175631600, -12320798320, 14487191200, 11011816030240, 95920712926400, -10911530551334720, -221918063914793600, 11682109283252497280, 421292676523621792000, -12959773881144953081600 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
From G. C. Greubel, Jul 14 2018: (Start)
a(n) = 7^n * Hermite(n, 5/7).
E.g.f.: exp(10*x - 49*x^2).
a(n) = numerator(Sum_{k=0..floor(n/2)} (-1)^k*n!*(10/7)^(n-2*k)/(k!*(n-2*k)!)). (End)
MATHEMATICA
Numerator[Table[HermiteH[n, 5/7], {n, 0, 50}]] (* Vladimir Joseph Stephan Orlovsky, Apr 01 2011*)
Table[7^n*HermiteH[n, 5/7], {n, 0, 30}] (* G. C. Greubel, Jul 14 2018 *)
PROG
(PARI) a(n)=numerator(polhermite(n, 5/7)) \\ Charles R Greathouse IV, Jan 29 2016
(PARI) x='x+O('x^30); Vec(serlaplace(exp(10*x - 49*x^2))) \\ G. C. Greubel, Jul 14 2018
(Magma) [Numerator((&+[(-1)^k*Factorial(n)*(10/7)^(n-2*k)/( Factorial(k) *Factorial(n-2*k)): k in [0..Floor(n/2)]])): n in [0..30]]; // G. C. Greubel, Jul 14 2018
CROSSREFS
Cf. A158980.
Sequence in context: A290308 A354941 A352689 * A144859 A280519 A010172
KEYWORD
sign,frac
AUTHOR
N. J. A. Sloane, Nov 12 2009
STATUS
approved

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Last modified July 22 15:35 EDT 2024. Contains 374535 sequences. (Running on oeis4.)