OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (5, -10, 10, -5, 1).
FORMULA
a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5); a(0)=0, a(1)=2401, a(2)=38416, a(3)=194481, a(4)=614656. - Harvey P. Dale, Mar 05 2013
MATHEMATICA
(7*Range[0, 20])^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {0, 2401, 38416, 194481, 614656}, 30] (* Harvey P. Dale, Mar 05 2013 *)
PROG
(Magma) [(7*n)^4: n in [0..30] ]; // Vincenzo Librandi, May 23 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved