A302301 - cp's OEIS frontend

A302301 Number of ways to write n as a sum of two distinct semiprimes.

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

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 2, 1, 1, 0, 1, 2, 2, 1, 1, 1, 2, 2, 3, 2, 0, 1, 3, 3, 2, 1, 3, 3, 2, 2, 4, 3, 2, 1, 4, 5, 3, 2, 1, 2, 3, 2, 5, 3, 2, 2, 5, 6, 6, 1, 3, 5, 3, 3, 4, 4, 3, 2, 6, 7, 5, 3, 3, 3, 4, 3, 5, 5, 3, 2, 7, 7, 2, 4]

cp's OEIS Frontend

A302301 Number of ways to write n as a sum of two distinct semiprimes.

Table of values

List of values

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

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

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