OFFSET
0,5
LINKS
Harry J. Smith, Table of n, a(n) for n = 0..400
Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).
FORMULA
G.f.: -288*x^4*(3*x^4+33*x^3+68*x^2+33*x+3) / (x-1)^9. - Colin Barker, Sep 14 2014
EXAMPLE
a(4) = 4*(3^3)*(2^3)*1 = 4*27*8*1 = 864.
MAPLE
MATHEMATICA
Table[n (n - 3) (n - 1)^3*(n - 2)^3, {n, 0, 50}] (* Wesley Ivan Hurt, Feb 02 2014 *)
PROG
(PARI) { for (n=0, 400, write("b064321.txt", n, " ", n*(n - 1)^3*(n - 2)^3*(n - 3)) ) } \\ Harry J. Smith, Sep 11 2009
(PARI) concat([0, 0, 0, 0], Vec(-288*x^4*(3*x^4+33*x^3+68*x^2+33*x+3)/(x-1)^9 + O(x^100))) \\ Colin Barker, Sep 14 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Henry Bottomley, Sep 10 2001
STATUS
approved