OFFSET
0,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..379 (terms 0..100 from T. D. Noe)
FORMULA
E.g.f.: exp(x/sqrt(1 - 2*x - 3*x^2)).
MATHEMATICA
With[{nn=20}, CoefficientList[Series[Exp[x/Sqrt[1-2 x-3x^2]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Sep 08 2011 *)
PROG
(PARI) x='x + O('x^50); Vec(serlaplace(exp(x/sqrt(1 - 2*x - 3*x^2)))) \\ G. C. Greubel, Feb 27 2017
CROSSREFS
KEYWORD
easy,nice,nonn
AUTHOR
Emanuele Munarini, Mar 31 2003
STATUS
approved