A350305 - cp's OEIS frontend

A350305 a(n) is the constant term in the expansion of Product_{k=1..n} (x^k + 1 + 1/x^k)^n.

n	a(n)
0	1
1	1
2	13
3	1437
4	1884211
5	24657701475
6	3111336932350947
7	3710920324904591897521
8	41323213770479673319301068309
9	4261037235228828189774620497534270303
10	4045313784246510024420372971256850718016451185

[1, 1, 13, 1437, 1884211, 24657701475, 3111336932350947, 3710920324904591897521, 41323213770479673319301068309, 4261037235228828189774620497534270303, 4045313784246510024420372971256850718016451185]

cp's OEIS Frontend

A350305 a(n) is the constant term in the expansion of Product_{k=1..n} (x^k + 1 + 1/x^k)^n.

Table of values

List of values