A166454 - cp's OEIS frontend

A166454 Triangle read by rows: T(n, k) = (1/2)*(A007318(n,k) - A047999(n,k)).

n	a(n)
2	1
3	1
4	1
5	2
6	3
7	2
8	2
9	5
10	5
11	2
12	3
13	7
14	10
15	7
16	3
17	3
18	10
19	17
20	17
21	10
22	3
23	4
24	14
25	28
26	35
27	28
28	14
29	4
30	4
31	18
32	42
33	63
34	63
35	42
36	18
37	4
38	5
39	22
40	60
41	105
42	126
43	105
44	60
45	22
46	5
47	5
48	27
49	82
50	165
51	231
52	231
53	165
54	82
55	27
56	5
57	6
58	33
59	110
60	247
61	396
62	462
63	396
64	247
65	110
66	33
67	6

[1, 1, 1, 2, 3, 2, 2, 5, 5, 2, 3, 7, 10, 7, 3, 3, 10, 17, 17, 10, 3, 4, 14, 28, 35, 28, 14, 4, 4, 18, 42, 63, 63, 42, 18, 4, 5, 22, 60, 105, 126, 105, 60, 22, 5, 5, 27, 82, 165, 231, 231, 165, 82, 27, 5, 6, 33, 110, 247, 396, 462, 396, 247, 110, 33, 6]

cp's OEIS Frontend

A166454 Triangle read by rows: T(n, k) = (1/2)*(A007318(n,k) - A047999(n,k)).

Table of values

List of values

n	a(n)
2	1
3	1
4	1
5	2
6	3
7	2
8	2
9	5
10	5
11	2
12	3
13	7
14	10
15	7
16	3
17	3
18	10
19	17
20	17
21	10
22	3
23	4
24	14
25	28
26	35
27	28
28	14
29	4
30	4
31	18
32	42
33	63
34	63
35	42
36	18
37	4
38	5
39	22
40	60
41	105
42	126
43	105
44	60
45	22
46	5
47	5
48	27
49	82
50	165
51	231
52	231
53	165
54	82
55	27
56	5
57	6
58	33
59	110
60	247
61	396
62	462
63	396
64	247
65	110
66	33
67	6

n	a(n)
2	1
3	1
4	1
5	2
6	3
7	2
8	2
9	5
10	5
11	2
12	3
13	7
14	10
15	7
16	3
17	3
18	10
19	17
20	17
21	10
22	3
23	4
24	14
25	28
26	35
27	28
28	14
29	4
30	4
31	18
32	42
33	63
34	63
35	42
36	18
37	4
38	5
39	22
40	60
41	105
42	126
43	105
44	60
45	22
46	5
47	5
48	27
49	82
50	165
51	231
52	231
53	165
54	82
55	27
56	5
57	6
58	33
59	110
60	247
61	396
62	462
63	396
64	247
65	110
66	33
67	6

n	a(n)
2	1
3	1
4	1
5	2
6	3
7	2
8	2
9	5
10	5
11	2
12	3
13	7
14	10
15	7
16	3
17	3
18	10
19	17
20	17
21	10
22	3
23	4
24	14
25	28
26	35
27	28
28	14
29	4
30	4
31	18
32	42
33	63
34	63
35	42
36	18
37	4
38	5
39	22
40	60
41	105
42	126
43	105
44	60
45	22
46	5
47	5
48	27
49	82
50	165
51	231
52	231
53	165
54	82
55	27
56	5
57	6
58	33
59	110
60	247
61	396
62	462
63	396
64	247
65	110
66	33
67	6