A320658 - cp's OEIS frontend

A320658 Number of factorizations of A181821(n) into semiprimes. Number of multiset partitions, of a multiset whose multiplicities are the prime indices of n, into pairs.

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	0
7	1
8	0
9	2
10	1
11	0
12	2
13	1
14	0
15	0
16	3
17	0
18	0
19	1
20	0
21	2
22	1
23	0
24	0
25	2
26	0
27	5
28	2
29	1
30	3
31	0
32	0
33	0
34	1
35	0
36	6
37	1
38	0
39	2
40	4
41	0
42	0
43	1
44	0
45	0
46	1
47	0
48	9
49	3
50	0
51	0
52	2
53	1
54	0
55	2
56	0
57	2
58	0
59	0
60	0
61	1
62	1
63	6
64	15
65	0
66	3
67	0
68	0
69	0
70	4
71	1
72	0
73	0
74	0
75	6
76	2
77	0
78	0
79	1
80	0
81	17
82	1
83	0
84	7
85	2
86	0

[1, 0, 1, 1, 0, 0, 1, 0, 2, 1, 0, 2, 1, 0, 0, 3, 0, 0, 1, 0, 2, 1, 0, 0, 2, 0, 5, 2, 1, 3, 0, 0, 0, 1, 0, 6, 1, 0, 2, 4, 0, 0, 1, 0, 0, 1, 0, 9, 3, 0, 0, 2, 1, 0, 2, 0, 2, 0, 0, 0, 1, 1, 6, 15, 0, 3, 0, 0, 0, 4, 1, 0, 0, 0, 6, 2, 0, 0, 1, 0, 17, 1, 0, 7, 2, 0]

cp's OEIS Frontend

A320658 Number of factorizations of A181821(n) into semiprimes. Number of multiset partitions, of a multiset whose multiplicities are the prime indices of n, into pairs.

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	0
7	1
8	0
9	2
10	1
11	0
12	2
13	1
14	0
15	0
16	3
17	0
18	0
19	1
20	0
21	2
22	1
23	0
24	0
25	2
26	0
27	5
28	2
29	1
30	3
31	0
32	0
33	0
34	1
35	0
36	6
37	1
38	0
39	2
40	4
41	0
42	0
43	1
44	0
45	0
46	1
47	0
48	9
49	3
50	0
51	0
52	2
53	1
54	0
55	2
56	0
57	2
58	0
59	0
60	0
61	1
62	1
63	6
64	15
65	0
66	3
67	0
68	0
69	0
70	4
71	1
72	0
73	0
74	0
75	6
76	2
77	0
78	0
79	1
80	0
81	17
82	1
83	0
84	7
85	2
86	0

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	0
7	1
8	0
9	2
10	1
11	0
12	2
13	1
14	0
15	0
16	3
17	0
18	0
19	1
20	0
21	2
22	1
23	0
24	0
25	2
26	0
27	5
28	2
29	1
30	3
31	0
32	0
33	0
34	1
35	0
36	6
37	1
38	0
39	2
40	4
41	0
42	0
43	1
44	0
45	0
46	1
47	0
48	9
49	3
50	0
51	0
52	2
53	1
54	0
55	2
56	0
57	2
58	0
59	0
60	0
61	1
62	1
63	6
64	15
65	0
66	3
67	0
68	0
69	0
70	4
71	1
72	0
73	0
74	0
75	6
76	2
77	0
78	0
79	1
80	0
81	17
82	1
83	0
84	7
85	2
86	0

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	0
7	1
8	0
9	2
10	1
11	0
12	2
13	1
14	0
15	0
16	3
17	0
18	0
19	1
20	0
21	2
22	1
23	0
24	0
25	2
26	0
27	5
28	2
29	1
30	3
31	0
32	0
33	0
34	1
35	0
36	6
37	1
38	0
39	2
40	4
41	0
42	0
43	1
44	0
45	0
46	1
47	0
48	9
49	3
50	0
51	0
52	2
53	1
54	0
55	2
56	0
57	2
58	0
59	0
60	0
61	1
62	1
63	6
64	15
65	0
66	3
67	0
68	0
69	0
70	4
71	1
72	0
73	0
74	0
75	6
76	2
77	0
78	0
79	1
80	0
81	17
82	1
83	0
84	7
85	2
86	0