A141095 - cp's OEIS frontend

A141095 Number of unordered pairs of coprime nonprime numbers that sum to 2n.

n	a(n)
1	1
2	0
3	0
4	0
5	1
6	0
7	0
8	1
9	0
10	0
11	1
12	0
13	1
14	1
15	0
16	0
17	2
18	1
19	0
20	1
21	0
22	1
23	2
24	0
25	1
26	2
27	0
28	1
29	3
30	0
31	1
32	4
33	1
34	1
35	1
36	0
37	3
38	4
39	1
40	0
41	4
42	0
43	4
44	3
45	0
46	4
47	5
48	1
49	1
50	3
51	1
52	4
53	6
54	0
55	0
56	4
57	1
58	6
59	6
60	1
61	5
62	7
63	1
64	5
65	3
66	0
67	8
68	7
69	0
70	0
71	10
72	3
73	9
74	9
75	0
76	6
77	5
78	2
79	8
80	5
81	2
82	9
83	10
84	1
85	5
86	11
87	2
88	9
89	12
90	0
91	3
92	12
93	4
94	11
95	5
96	2
97	12
98	9
99	1
100	4
101	14

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

cp's OEIS Frontend

A141095 Number of unordered pairs of coprime nonprime numbers that sum to 2n.

Table of values

List of values

n	a(n)
1	1
2	0
3	0
4	0
5	1
6	0
7	0
8	1
9	0
10	0
11	1
12	0
13	1
14	1
15	0
16	0
17	2
18	1
19	0
20	1
21	0
22	1
23	2
24	0
25	1
26	2
27	0
28	1
29	3
30	0
31	1
32	4
33	1
34	1
35	1
36	0
37	3
38	4
39	1
40	0
41	4
42	0
43	4
44	3
45	0
46	4
47	5
48	1
49	1
50	3
51	1
52	4
53	6
54	0
55	0
56	4
57	1
58	6
59	6
60	1
61	5
62	7
63	1
64	5
65	3
66	0
67	8
68	7
69	0
70	0
71	10
72	3
73	9
74	9
75	0
76	6
77	5
78	2
79	8
80	5
81	2
82	9
83	10
84	1
85	5
86	11
87	2
88	9
89	12
90	0
91	3
92	12
93	4
94	11
95	5
96	2
97	12
98	9
99	1
100	4
101	14

n	a(n)
1	1
2	0
3	0
4	0
5	1
6	0
7	0
8	1
9	0
10	0
11	1
12	0
13	1
14	1
15	0
16	0
17	2
18	1
19	0
20	1
21	0
22	1
23	2
24	0
25	1
26	2
27	0
28	1
29	3
30	0
31	1
32	4
33	1
34	1
35	1
36	0
37	3
38	4
39	1
40	0
41	4
42	0
43	4
44	3
45	0
46	4
47	5
48	1
49	1
50	3
51	1
52	4
53	6
54	0
55	0
56	4
57	1
58	6
59	6
60	1
61	5
62	7
63	1
64	5
65	3
66	0
67	8
68	7
69	0
70	0
71	10
72	3
73	9
74	9
75	0
76	6
77	5
78	2
79	8
80	5
81	2
82	9
83	10
84	1
85	5
86	11
87	2
88	9
89	12
90	0
91	3
92	12
93	4
94	11
95	5
96	2
97	12
98	9
99	1
100	4
101	14

n	a(n)
1	1
2	0
3	0
4	0
5	1
6	0
7	0
8	1
9	0
10	0
11	1
12	0
13	1
14	1
15	0
16	0
17	2
18	1
19	0
20	1
21	0
22	1
23	2
24	0
25	1
26	2
27	0
28	1
29	3
30	0
31	1
32	4
33	1
34	1
35	1
36	0
37	3
38	4
39	1
40	0
41	4
42	0
43	4
44	3
45	0
46	4
47	5
48	1
49	1
50	3
51	1
52	4
53	6
54	0
55	0
56	4
57	1
58	6
59	6
60	1
61	5
62	7
63	1
64	5
65	3
66	0
67	8
68	7
69	0
70	0
71	10
72	3
73	9
74	9
75	0
76	6
77	5
78	2
79	8
80	5
81	2
82	9
83	10
84	1
85	5
86	11
87	2
88	9
89	12
90	0
91	3
92	12
93	4
94	11
95	5
96	2
97	12
98	9
99	1
100	4
101	14