A120450 - cp's OEIS frontend

A120450 Number of ways to express a prime p as 2p1 + 3p2, where p1, p2 are primes or 1.

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

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

cp's OEIS Frontend

A120450 Number of ways to express a prime p as 2p1 + 3p2, where p1, p2 are primes or 1.

Table of values

List of values

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

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

cp's OEIS Frontend

A120450 Number of ways to express a prime p as 2*p1 + 3*p2, where p1, p2 are primes or 1.

Table of values

List of values

A120450 Number of ways to express a prime p as 2p1 + 3p2, where p1, p2 are primes or 1.

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