OFFSET
0,2
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..690
FORMULA
MAPLE
seq(coeff(series(3/((1-27*x) +2*(1-27*x)^(8/9)), x, n+1), x, n), n = 0 ..20); # G. C. Greubel, Sep 17 2019
MATHEMATICA
CoefficientList[Series[3/((1-27*x) +2*(1-27*x)^(8/9)), {x, 0, 20}], x] (* G. C. Greubel, Sep 17 2019 *)
PROG
(PARI) a(n)=polcoeff(3/((1-27*x) + 2*(1-27*x+x*O(x^n))^(8/9)), n, x)
(Magma) R<x>:=PowerSeriesRing(Rationals(), 20); Coefficients(R!( 3/((1-27*x) +2*(1-27*x)^(8/9)) )); // G. C. Greubel, Sep 17 2019
(Sage)
def A097194_list(prec):
P.<x> = PowerSeriesRing(QQ, prec)
return P(3/((1-27*x) +2*(1-27*x)^(8/9))).list()
A097194_list(20) # G. C. Greubel, Sep 17 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Aug 03 2004
STATUS
approved