OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Index entries for linear recurrences with constant coefficients, signature (24,-183,496,-336).
FORMULA
a(n) = (9*12^(n+3) - 44*7^(n+3) + 55*4^(n+3) - 20)/3960. - Yahia Kahloune, Jul 05 2013
a(n) = 24*a(n-1) - 183*a(n-2) + 496*a(n-3) - 336*a(n-4) for n > 3. - Chai Wah Wu, Feb 03 2021
MATHEMATICA
CoefficientList[Series[1 / ((1 - x) (1 - 4 x) (1 - 7 x) (1 - 12 x)), {x, 0, 20}], x] (* Vincenzo Librandi, Jul 11 2013 *)
LinearRecurrence[{24, -183, 496, -336}, {1, 24, 393, 5536}, 20] (* Harvey P. Dale, Apr 14 2023 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved