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A017416
a(n) = (11*n + 2)^4.
1
16, 28561, 331776, 1500625, 4477456, 10556001, 21381376, 38950081, 65610000, 104060401, 157351936, 228886641, 322417936, 442050625, 592240896, 777796321, 1003875856, 1275989841, 1600000000, 1982119441, 2428912656, 2947295521, 3544535296, 4228250625, 5006411536, 5887339441
OFFSET
0,1
FORMULA
a(0)=16, a(1)=28561, a(2)=331776, a(3)=1500625, a(4)=4477456, a(n)= 5*a(n-1)- 10*a(n-2)+10*a(n-3)-5*a(n-4)+a(n-5). - Harvey P. Dale, Jun 05 2012
MATHEMATICA
(11Range[0, 20]+2)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {16, 28561, 331776, 1500625, 4477456}, 20] (* Harvey P. Dale, Jun 05 2012 *)
CROSSREFS
Sequence in context: A308309 A159427 A340590 * A265618 A087518 A249971
KEYWORD
nonn,easy
STATUS
approved