|
|
A017226
|
|
a(n) = (9*n + 5)^6.
|
|
4
|
|
|
15625, 7529536, 148035889, 1073741824, 4750104241, 15625000000, 42180533641, 98867482624, 208422380089, 404567235136, 735091890625, 1265319018496, 2081951752609, 3297303959104, 5053913144281
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,1
|
|
LINKS
|
|
|
FORMULA
|
G.f.: -(15625 + 7420161*x + 95657262*x^2 + 195063982*x^3 + 79678257*x^4 + 4798137*x^5 + 4096*x^6) /(x-1)^7. - R. J. Mathar, Mar 20 2018
|
|
PROG
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|