A325704 - cp's OEIS frontend

A325704 If n = prime(i_1)^j_1 * ... * prime(i_k)^j_k, then a(n) is the numerator of the reciprocal factorial sum j_1/i_1! + ... + j_k/i_k!.

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	3
9	1
10	7
11	1
12	5
13	1
14	25
15	2
16	4
17	1
18	2
19	1
20	13
21	13
22	121
23	1
24	7
25	1
26	721
27	3
28	49
29	1
30	5
31	1
32	5
33	61
34	5041
35	5
36	3
37	1
38	40321
39	361
40	19
41	1
42	37
43	1
44	241
45	7
46	362881
47	1
48	9
49	1
50	4
51	2521
52	1441
53	1
54	5
55	7
56	73
57	20161
58	3628801
59	1
60	8
61	1
62	39916801
63	25
64	6
65	121
66	181
67	1

[0, 1, 1, 2, 1, 3, 1, 3, 1, 7, 1, 5, 1, 25, 2, 4, 1, 2, 1, 13, 13, 121, 1, 7, 1, 721, 3, 49, 1, 5, 1, 5, 61, 5041, 5, 3, 1, 40321, 361, 19, 1, 37, 1, 241, 7, 362881, 1, 9, 1, 4, 2521, 1441, 1, 5, 7, 73, 20161, 3628801, 1, 8, 1, 39916801, 25, 6, 121, 181, 1]

cp's OEIS Frontend

A325704 If n = prime(i_1)^j_1 * ... * prime(i_k)^j_k, then a(n) is the numerator of the reciprocal factorial sum j_1/i_1! + ... + j_k/i_k!.

Table of values

List of values