A350283 - cp's OEIS frontend

A350283 a(n) is the constant term in the expansion of Product_{k=1..n} (x^k + 1/x^k)^k.

n	a(n)
0	1
1	0
2	0
3	6
4	76
5	0
6	0
7	7559080
8	1509040932
9	0
10	0
11	887531129680197018
12	3078434842626707386602
13	0
14	0
15	8813577747274880345454470354985336
16	509819403352972623999938010230619997952
17	0
18	0
19	6578453931935965721022496238115694708685746283712759572

[1, 0, 0, 6, 76, 0, 0, 7559080, 1509040932, 0, 0, 887531129680197018, 3078434842626707386602, 0, 0, 8813577747274880345454470354985336, 509819403352972623999938010230619997952, 0, 0, 6578453931935965721022496238115694708685746283712759572]

cp's OEIS Frontend

A350283 a(n) is the constant term in the expansion of Product_{k=1..n} (x^k + 1/x^k)^k.

Table of values

List of values