A328186 - cp's OEIS frontend

A328186 Write 1/(1 + sin x) = Product_{n>=1} (1 + f_n x^n); a(n) = denominator(f_n).

n	a(n)
1	1
2	1
3	6
4	6
5	120
6	360
7	5040
8	2520
9	72576
10	1814400
11	39916800
12	59875200
13	1245404160
14	21794572800
15	1307674368000
16	81729648000
17	71137485619200
18	3201186852864000
19	121645100408832000
20	12164510040883200
21	10218188434341888000
22	281000181944401920000
23	25852016738884976640000

[1, 1, 6, 6, 120, 360, 5040, 2520, 72576, 1814400, 39916800, 59875200, 1245404160, 21794572800, 1307674368000, 81729648000, 71137485619200, 3201186852864000, 121645100408832000, 12164510040883200, 10218188434341888000, 281000181944401920000, 25852016738884976640000]

cp's OEIS Frontend

A328186 Write 1/(1 + sin x) = Product_{n>=1} (1 + f_n x^n); a(n) = denominator(f_n).

Table of values

List of values