A221529 - cp's OEIS frontend

A221529 Triangle read by rows: T(n,k) = A000203(k)*A000041(n-k), 1 <= k <= n.

n	a(n)
1	1
2	1
3	3
4	2
5	3
6	4
7	3
8	6
9	4
10	7
11	5
12	9
13	8
14	7
15	6
16	7
17	15
18	12
19	14
20	6
21	12
22	11
23	21
24	20
25	21
26	12
27	12
28	8
29	15
30	33
31	28
32	35
33	18
34	24
35	8
36	15
37	22
38	45
39	44
40	49
41	30
42	36
43	16
44	15
45	13
46	30
47	66
48	60
49	77
50	42
51	60
52	24
53	30
54	13
55	18
56	42
57	90
58	88
59	105
60	66
61	84
62	40
63	45
64	26
65	18
66	12
67	56
68	126
69	120
70	154
71	90
72	132
73	56
74	75
75	39
76	36
77	12
78	28

[1, 1, 3, 2, 3, 4, 3, 6, 4, 7, 5, 9, 8, 7, 6, 7, 15, 12, 14, 6, 12, 11, 21, 20, 21, 12, 12, 8, 15, 33, 28, 35, 18, 24, 8, 15, 22, 45, 44, 49, 30, 36, 16, 15, 13, 30, 66, 60, 77, 42, 60, 24, 30, 13, 18, 42, 90, 88, 105, 66, 84, 40, 45, 26, 18, 12, 56, 126, 120, 154, 90, 132, 56, 75, 39, 36, 12, 28]

cp's OEIS Frontend

A221529 Triangle read by rows: T(n,k) = A000203(k)*A000041(n-k), 1 <= k <= n.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	2
5	3
6	4
7	3
8	6
9	4
10	7
11	5
12	9
13	8
14	7
15	6
16	7
17	15
18	12
19	14
20	6
21	12
22	11
23	21
24	20
25	21
26	12
27	12
28	8
29	15
30	33
31	28
32	35
33	18
34	24
35	8
36	15
37	22
38	45
39	44
40	49
41	30
42	36
43	16
44	15
45	13
46	30
47	66
48	60
49	77
50	42
51	60
52	24
53	30
54	13
55	18
56	42
57	90
58	88
59	105
60	66
61	84
62	40
63	45
64	26
65	18
66	12
67	56
68	126
69	120
70	154
71	90
72	132
73	56
74	75
75	39
76	36
77	12
78	28

n	a(n)
1	1
2	1
3	3
4	2
5	3
6	4
7	3
8	6
9	4
10	7
11	5
12	9
13	8
14	7
15	6
16	7
17	15
18	12
19	14
20	6
21	12
22	11
23	21
24	20
25	21
26	12
27	12
28	8
29	15
30	33
31	28
32	35
33	18
34	24
35	8
36	15
37	22
38	45
39	44
40	49
41	30
42	36
43	16
44	15
45	13
46	30
47	66
48	60
49	77
50	42
51	60
52	24
53	30
54	13
55	18
56	42
57	90
58	88
59	105
60	66
61	84
62	40
63	45
64	26
65	18
66	12
67	56
68	126
69	120
70	154
71	90
72	132
73	56
74	75
75	39
76	36
77	12
78	28

n	a(n)
1	1
2	1
3	3
4	2
5	3
6	4
7	3
8	6
9	4
10	7
11	5
12	9
13	8
14	7
15	6
16	7
17	15
18	12
19	14
20	6
21	12
22	11
23	21
24	20
25	21
26	12
27	12
28	8
29	15
30	33
31	28
32	35
33	18
34	24
35	8
36	15
37	22
38	45
39	44
40	49
41	30
42	36
43	16
44	15
45	13
46	30
47	66
48	60
49	77
50	42
51	60
52	24
53	30
54	13
55	18
56	42
57	90
58	88
59	105
60	66
61	84
62	40
63	45
64	26
65	18
66	12
67	56
68	126
69	120
70	154
71	90
72	132
73	56
74	75
75	39
76	36
77	12
78	28