A003506 - cp's OEIS frontend

A003506 Triangle of denominators in Leibniz's Harmonic Triangle a(n,k), n >= 1, 1 <= k <= n.

n	a(n)
1	1
2	2
3	2
4	3
5	6
6	3
7	4
8	12
9	12
10	4
11	5
12	20
13	30
14	20
15	5
16	6
17	30
18	60
19	60
20	30
21	6
22	7
23	42
24	105
25	140
26	105
27	42
28	7
29	8
30	56
31	168
32	280
33	280
34	168
35	56
36	8
37	9
38	72
39	252
40	504
41	630
42	504
43	252
44	72
45	9
46	10
47	90
48	360
49	840
50	1260
51	1260
52	840
53	360
54	90
55	10
56	11
57	110
58	495
59	1320
60	2310
61	2772
62	2310
63	1320
64	495
65	110
66	11

[1, 2, 2, 3, 6, 3, 4, 12, 12, 4, 5, 20, 30, 20, 5, 6, 30, 60, 60, 30, 6, 7, 42, 105, 140, 105, 42, 7, 8, 56, 168, 280, 280, 168, 56, 8, 9, 72, 252, 504, 630, 504, 252, 72, 9, 10, 90, 360, 840, 1260, 1260, 840, 360, 90, 10, 11, 110, 495, 1320, 2310, 2772, 2310, 1320, 495, 110, 11]

cp's OEIS Frontend

A003506 Triangle of denominators in Leibniz's Harmonic Triangle a(n,k), n >= 1, 1 <= k <= n.

Table of values

List of values