A347744 - cp's OEIS frontend

A347744 Number of compositions (ordered partitions) of n into at most 2 prime parts (counting 1 as a prime).

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

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

cp's OEIS Frontend

A347744 Number of compositions (ordered partitions) of n into at most 2 prime parts (counting 1 as a prime).

Table of values

List of values

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

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

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