A171963 - cp's OEIS frontend

A171963 Number of partitions of the n-th semiprime into two semiprimes.

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	0
9	2
10	1
11	0
12	1
13	3
14	1
15	3
16	1
17	3
18	1
19	5
20	2
21	2
22	1
23	3
24	3
25	3
26	4
27	2
28	2
29	4
30	4
31	8
32	3
33	3
34	8
35	4
36	5
37	8
38	3
39	6
40	7
41	3
42	5
43	7
44	9
45	5
46	5
47	7
48	10
49	7
50	6
51	11
52	5
53	8
54	7
55	5
56	9
57	8
58	8
59	9
60	6
61	10
62	8
63	8
64	7
65	11
66	9
67	9
68	10
69	9
70	7
71	15
72	12
73	10
74	11
75	9
76	10
77	15
78	9
79	12
80	10
81	12
82	12
83	13
84	11
85	11
86	11
87	15
88	12
89	17
90	12
91	13
92	16
93	14

[0, 0, 0, 1, 1, 1, 1, 0, 2, 1, 0, 1, 3, 1, 3, 1, 3, 1, 5, 2, 2, 1, 3, 3, 3, 4, 2, 2, 4, 4, 8, 3, 3, 8, 4, 5, 8, 3, 6, 7, 3, 5, 7, 9, 5, 5, 7, 10, 7, 6, 11, 5, 8, 7, 5, 9, 8, 8, 9, 6, 10, 8, 8, 7, 11, 9, 9, 10, 9, 7, 15, 12, 10, 11, 9, 10, 15, 9, 12, 10, 12, 12, 13, 11, 11, 11, 15, 12, 17, 12, 13, 16, 14]

cp's OEIS Frontend

A171963 Number of partitions of the n-th semiprime into two semiprimes.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	0
9	2
10	1
11	0
12	1
13	3
14	1
15	3
16	1
17	3
18	1
19	5
20	2
21	2
22	1
23	3
24	3
25	3
26	4
27	2
28	2
29	4
30	4
31	8
32	3
33	3
34	8
35	4
36	5
37	8
38	3
39	6
40	7
41	3
42	5
43	7
44	9
45	5
46	5
47	7
48	10
49	7
50	6
51	11
52	5
53	8
54	7
55	5
56	9
57	8
58	8
59	9
60	6
61	10
62	8
63	8
64	7
65	11
66	9
67	9
68	10
69	9
70	7
71	15
72	12
73	10
74	11
75	9
76	10
77	15
78	9
79	12
80	10
81	12
82	12
83	13
84	11
85	11
86	11
87	15
88	12
89	17
90	12
91	13
92	16
93	14

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	0
9	2
10	1
11	0
12	1
13	3
14	1
15	3
16	1
17	3
18	1
19	5
20	2
21	2
22	1
23	3
24	3
25	3
26	4
27	2
28	2
29	4
30	4
31	8
32	3
33	3
34	8
35	4
36	5
37	8
38	3
39	6
40	7
41	3
42	5
43	7
44	9
45	5
46	5
47	7
48	10
49	7
50	6
51	11
52	5
53	8
54	7
55	5
56	9
57	8
58	8
59	9
60	6
61	10
62	8
63	8
64	7
65	11
66	9
67	9
68	10
69	9
70	7
71	15
72	12
73	10
74	11
75	9
76	10
77	15
78	9
79	12
80	10
81	12
82	12
83	13
84	11
85	11
86	11
87	15
88	12
89	17
90	12
91	13
92	16
93	14

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	1
8	0
9	2
10	1
11	0
12	1
13	3
14	1
15	3
16	1
17	3
18	1
19	5
20	2
21	2
22	1
23	3
24	3
25	3
26	4
27	2
28	2
29	4
30	4
31	8
32	3
33	3
34	8
35	4
36	5
37	8
38	3
39	6
40	7
41	3
42	5
43	7
44	9
45	5
46	5
47	7
48	10
49	7
50	6
51	11
52	5
53	8
54	7
55	5
56	9
57	8
58	8
59	9
60	6
61	10
62	8
63	8
64	7
65	11
66	9
67	9
68	10
69	9
70	7
71	15
72	12
73	10
74	11
75	9
76	10
77	15
78	9
79	12
80	10
81	12
82	12
83	13
84	11
85	11
86	11
87	15
88	12
89	17
90	12
91	13
92	16
93	14