A222656 - cp's OEIS frontend

A222656 Number T(n,k) of partitions of n using exactly k primes; triangle T(n,k), n>=0, 0<=k<=floor(n/2), read by rows.

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

[1, 1, 1, 1, 1, 2, 2, 2, 1, 2, 3, 2, 3, 4, 3, 1, 3, 6, 4, 2, 5, 7, 6, 3, 1, 6, 9, 8, 5, 2, 8, 11, 12, 7, 3, 1, 8, 17, 14, 10, 5, 2, 12, 20, 19, 14, 8, 3, 1, 13, 26, 25, 19, 11, 5, 2, 17, 31, 35, 24, 16, 8, 3, 1, 19, 41, 42, 34, 21, 12, 5, 2, 26, 47, 56, 44, 29]

cp's OEIS Frontend

A222656 Number T(n,k) of partitions of n using exactly k primes; triangle T(n,k), n>=0, 0<=k<=floor(n/2), read by rows.

Table of values

List of values

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

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

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