OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (4, -6, 4, -1).
FORMULA
G.f.: 1000*x*(1 + 4*x + x^2)/(x-1)^4. - R. J. Mathar, Mar 20 2018
MATHEMATICA
(10 Range[0, 30])^3 (* or *) LinearRecurrence[{4, -6, 4, -1}, {0, 1000, 8000, 27000}, 30] (* Harvey P. Dale, Apr 15 2018 *)
PROG
(Magma) [(10*n)^3: n in [0..40]]; // Vincenzo Librandi, Jul 28 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved