OFFSET
0,2
LINKS
DLMF Digital library of mathematical functions, Table 18.9.1 for H_n(x)
FORMULA
E.g.f.: exp(-x*(441*x-40)). - Vincenzo Librandi, Jan 20 2017
D-finite with recurrence a(n) = 40*a(n-1)-882*(n-1)*a(n-2). - [DLMF] Vincenzo Librandi, Jan 20 2017, corrected Feb 06 2021
EXAMPLE
Numerators of 1, 40/21, 718/441, -41840/9261, -3573428/194481, ...
MATHEMATICA
HermiteH[Range[0, 20], 20/21]//Numerator (* Harvey P. Dale, Dec 05 2022 *)
PROG
(PARI) a(n)=numerator(polhermite(n, 20/21)) \\ Charles R Greathouse IV, Jan 29 2016
CROSSREFS
KEYWORD
sign,frac
AUTHOR
N. J. A. Sloane, Nov 12 2009
STATUS
approved