A046206 - cp's OEIS frontend

A046206 In Leibniz's Harmonic Triangle, write denominator first and then numerator of each element.

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	3
8	1
9	6
10	1
11	3
12	1
13	4
14	1
15	12
16	1
17	12
18	1
19	4
20	1
21	5
22	1
23	20
24	1
25	30
26	1
27	20
28	1
29	5
30	1
31	6
32	1
33	30
34	1
35	60
36	1
37	60
38	1
39	30
40	1
41	6
42	1
43	7
44	1
45	42
46	1
47	105
48	1
49	140
50	1
51	105
52	1
53	42
54	1
55	7
56	1
57	8
58	1
59	56
60	1
61	168
62	1
63	280
64	1
65	280
66	1
67	168
68	1
69	56
70	1
71	8
72	1
73	9
74	1
75	72
76	1
77	252
78	1
79	504
80	1
81	630
82	1
83	504
84	1
85	252

[1, 1, 2, 1, 2, 1, 3, 1, 6, 1, 3, 1, 4, 1, 12, 1, 12, 1, 4, 1, 5, 1, 20, 1, 30, 1, 20, 1, 5, 1, 6, 1, 30, 1, 60, 1, 60, 1, 30, 1, 6, 1, 7, 1, 42, 1, 105, 1, 140, 1, 105, 1, 42, 1, 7, 1, 8, 1, 56, 1, 168, 1, 280, 1, 280, 1, 168, 1, 56, 1, 8, 1, 9, 1, 72, 1, 252, 1, 504, 1, 630, 1, 504, 1, 252]

cp's OEIS Frontend

A046206 In Leibniz's Harmonic Triangle, write denominator first and then numerator of each element.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	3
8	1
9	6
10	1
11	3
12	1
13	4
14	1
15	12
16	1
17	12
18	1
19	4
20	1
21	5
22	1
23	20
24	1
25	30
26	1
27	20
28	1
29	5
30	1
31	6
32	1
33	30
34	1
35	60
36	1
37	60
38	1
39	30
40	1
41	6
42	1
43	7
44	1
45	42
46	1
47	105
48	1
49	140
50	1
51	105
52	1
53	42
54	1
55	7
56	1
57	8
58	1
59	56
60	1
61	168
62	1
63	280
64	1
65	280
66	1
67	168
68	1
69	56
70	1
71	8
72	1
73	9
74	1
75	72
76	1
77	252
78	1
79	504
80	1
81	630
82	1
83	504
84	1
85	252

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	3
8	1
9	6
10	1
11	3
12	1
13	4
14	1
15	12
16	1
17	12
18	1
19	4
20	1
21	5
22	1
23	20
24	1
25	30
26	1
27	20
28	1
29	5
30	1
31	6
32	1
33	30
34	1
35	60
36	1
37	60
38	1
39	30
40	1
41	6
42	1
43	7
44	1
45	42
46	1
47	105
48	1
49	140
50	1
51	105
52	1
53	42
54	1
55	7
56	1
57	8
58	1
59	56
60	1
61	168
62	1
63	280
64	1
65	280
66	1
67	168
68	1
69	56
70	1
71	8
72	1
73	9
74	1
75	72
76	1
77	252
78	1
79	504
80	1
81	630
82	1
83	504
84	1
85	252

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	1
7	3
8	1
9	6
10	1
11	3
12	1
13	4
14	1
15	12
16	1
17	12
18	1
19	4
20	1
21	5
22	1
23	20
24	1
25	30
26	1
27	20
28	1
29	5
30	1
31	6
32	1
33	30
34	1
35	60
36	1
37	60
38	1
39	30
40	1
41	6
42	1
43	7
44	1
45	42
46	1
47	105
48	1
49	140
50	1
51	105
52	1
53	42
54	1
55	7
56	1
57	8
58	1
59	56
60	1
61	168
62	1
63	280
64	1
65	280
66	1
67	168
68	1
69	56
70	1
71	8
72	1
73	9
74	1
75	72
76	1
77	252
78	1
79	504
80	1
81	630
82	1
83	504
84	1
85	252