A181512 - cp's OEIS frontend

A181512 Irregular triangle a(n,k) = A181415(n,k) / A036040(n,k).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	1
8	3
9	3
10	6
11	6
12	1
13	4
14	4
15	12
16	12
17	24
18	24
19	1
20	5
21	5
22	5
23	20
24	20
25	20
26	60
27	60
28	120
29	120
30	1
31	6
32	6
33	6
34	30
35	30
36	30
37	30
38	120
39	120
40	120
41	360
42	360
43	720
44	720
45	1
46	7
47	7
48	7
49	7
50	42
51	42
52	42
53	42
54	42
55	210
56	210

[1, 1, 1, 1, 2, 2, 1, 3, 3, 6, 6, 1, 4, 4, 12, 12, 24, 24, 1, 5, 5, 5, 20, 20, 20, 60, 60, 120, 120, 1, 6, 6, 6, 30, 30, 30, 30, 120, 120, 120, 360, 360, 720, 720, 1, 7, 7, 7, 7, 42, 42, 42, 42, 42, 210, 210]

cp's OEIS Frontend

A181512 Irregular triangle a(n,k) = A181415(n,k) / A036040(n,k).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	1
8	3
9	3
10	6
11	6
12	1
13	4
14	4
15	12
16	12
17	24
18	24
19	1
20	5
21	5
22	5
23	20
24	20
25	20
26	60
27	60
28	120
29	120
30	1
31	6
32	6
33	6
34	30
35	30
36	30
37	30
38	120
39	120
40	120
41	360
42	360
43	720
44	720
45	1
46	7
47	7
48	7
49	7
50	42
51	42
52	42
53	42
54	42
55	210
56	210

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	1
8	3
9	3
10	6
11	6
12	1
13	4
14	4
15	12
16	12
17	24
18	24
19	1
20	5
21	5
22	5
23	20
24	20
25	20
26	60
27	60
28	120
29	120
30	1
31	6
32	6
33	6
34	30
35	30
36	30
37	30
38	120
39	120
40	120
41	360
42	360
43	720
44	720
45	1
46	7
47	7
48	7
49	7
50	42
51	42
52	42
53	42
54	42
55	210
56	210

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	1
8	3
9	3
10	6
11	6
12	1
13	4
14	4
15	12
16	12
17	24
18	24
19	1
20	5
21	5
22	5
23	20
24	20
25	20
26	60
27	60
28	120
29	120
30	1
31	6
32	6
33	6
34	30
35	30
36	30
37	30
38	120
39	120
40	120
41	360
42	360
43	720
44	720
45	1
46	7
47	7
48	7
49	7
50	42
51	42
52	42
53	42
54	42
55	210
56	210