A091438 - cp's OEIS frontend

A091438 Triangle a(n,k) of partitions of n objects of 2 colors, k of which are black and each part with at least one black object.

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	3
9	4
10	5
11	1
12	3
13	6
14	7
15	7
16	1
17	4
18	8
19	12
20	12
21	11
22	1
23	4
24	10
25	16
26	21
27	19
28	15
29	1
30	5
31	12
32	23
33	31
34	36
35	30
36	22
37	1
38	5
39	15
40	28
41	45
42	55
43	58
44	45
45	30
46	1
47	6
48	17
49	37
50	60
51	84
52	94
53	92
54	67
55	42
56	1
57	6
58	20
59	44
60	80
61	115
62	147
63	153
64	140
65	97
66	56
67	1
68	7
69	23
70	55
71	101
72	161
73	211
74	249
75	244
76	211
77	139
78	77

[1, 1, 2, 1, 2, 3, 1, 3, 4, 5, 1, 3, 6, 7, 7, 1, 4, 8, 12, 12, 11, 1, 4, 10, 16, 21, 19, 15, 1, 5, 12, 23, 31, 36, 30, 22, 1, 5, 15, 28, 45, 55, 58, 45, 30, 1, 6, 17, 37, 60, 84, 94, 92, 67, 42, 1, 6, 20, 44, 80, 115, 147, 153, 140, 97, 56, 1, 7, 23, 55, 101, 161, 211, 249, 244, 211, 139, 77]

cp's OEIS Frontend

A091438 Triangle a(n,k) of partitions of n objects of 2 colors, k of which are black and each part with at least one black object.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	3
9	4
10	5
11	1
12	3
13	6
14	7
15	7
16	1
17	4
18	8
19	12
20	12
21	11
22	1
23	4
24	10
25	16
26	21
27	19
28	15
29	1
30	5
31	12
32	23
33	31
34	36
35	30
36	22
37	1
38	5
39	15
40	28
41	45
42	55
43	58
44	45
45	30
46	1
47	6
48	17
49	37
50	60
51	84
52	94
53	92
54	67
55	42
56	1
57	6
58	20
59	44
60	80
61	115
62	147
63	153
64	140
65	97
66	56
67	1
68	7
69	23
70	55
71	101
72	161
73	211
74	249
75	244
76	211
77	139
78	77

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	3
9	4
10	5
11	1
12	3
13	6
14	7
15	7
16	1
17	4
18	8
19	12
20	12
21	11
22	1
23	4
24	10
25	16
26	21
27	19
28	15
29	1
30	5
31	12
32	23
33	31
34	36
35	30
36	22
37	1
38	5
39	15
40	28
41	45
42	55
43	58
44	45
45	30
46	1
47	6
48	17
49	37
50	60
51	84
52	94
53	92
54	67
55	42
56	1
57	6
58	20
59	44
60	80
61	115
62	147
63	153
64	140
65	97
66	56
67	1
68	7
69	23
70	55
71	101
72	161
73	211
74	249
75	244
76	211
77	139
78	77

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	3
9	4
10	5
11	1
12	3
13	6
14	7
15	7
16	1
17	4
18	8
19	12
20	12
21	11
22	1
23	4
24	10
25	16
26	21
27	19
28	15
29	1
30	5
31	12
32	23
33	31
34	36
35	30
36	22
37	1
38	5
39	15
40	28
41	45
42	55
43	58
44	45
45	30
46	1
47	6
48	17
49	37
50	60
51	84
52	94
53	92
54	67
55	42
56	1
57	6
58	20
59	44
60	80
61	115
62	147
63	153
64	140
65	97
66	56
67	1
68	7
69	23
70	55
71	101
72	161
73	211
74	249
75	244
76	211
77	139
78	77