A380271 - cp's OEIS frontend

A380271 Denominators of coefficients in expansion of exp(-1 + 1 / Product_{k>=1} (1 - x^k)).

n	a(n)
0	1
1	1
2	2
3	6
4	24
5	120
6	720
7	1008
8	40320
9	72576
10	3628800
11	39916800
12	95800320
13	6227020800
14	3487131648
15	1307674368000
16	20922789888000
17	2845499424768
18	6402373705728000
19	24329020081766400
20	187146308321280000
21	51090942171709440000
22	224800145555521536000
23	25852016738884976640000

[1, 1, 2, 6, 24, 120, 720, 1008, 40320, 72576, 3628800, 39916800, 95800320, 6227020800, 3487131648, 1307674368000, 20922789888000, 2845499424768, 6402373705728000, 24329020081766400, 187146308321280000, 51090942171709440000, 224800145555521536000, 25852016738884976640000]

cp's OEIS Frontend

A380271 Denominators of coefficients in expansion of exp(-1 + 1 / Product_{k>=1} (1 - x^k)).

Table of values

List of values