OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..48
FORMULA
a(n) ~ exp((2*Pi*sqrt((2699 - 1920*cos(2*Pi/13) + 4184*cos(3*Pi/13) - 4512*sin(Pi/26) + 4752*sin(3*Pi/26) - 2944*sin(5*Pi/26))/13) / 13 - 12)*n) * n^(13*n+13).
MATHEMATICA
Table[Product[k^13+(n-k)^13, {k, 0, n}], {n, 0, 10}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Jan 23 2019
STATUS
approved