OFFSET
0,6
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..500
Eric Weisstein's World of Mathematics, Laguerre Polynomial
Wikipedia, Laguerre polynomials
FORMULA
Numerators of coefficients in expansion of exp(-2*x/(1 - x))/(1 - x). - Ilya Gutkovskiy, Aug 29 2018
EXAMPLE
MATHEMATICA
Numerator[LaguerreL[Range[0, 30], 2]] (* Harvey P. Dale, May 16 2012 *)
PROG
(PARI) for(n=0, 30, print1(numerator(sum(k=0, n, binomial(n, k)*((-2)^k/k!))), ", ")) \\ G. C. Greubel, May 06 2018
(Magma) [Numerator((&+[Binomial(n, k)*((-2)^k/Factorial(k)): k in [0..n]])): n in [0..30]]; // G. C. Greubel, May 06 2018
CROSSREFS
KEYWORD
sign,frac
AUTHOR
N. J. A. Sloane, Nov 14 2009
STATUS
approved