A137767 - cp's OEIS frontend

A137767 Nontrivial numbers of the elements to the right of the central elements in writing first the numerator and then the denominator (left to right) of Leibniz's harmonic-like triangle.

n	a(n)
1	2
2	3
3	7
4	12
5	4
6	9
7	20
8	5
9	49
10	60
11	11
12	30
13	6
14	71
15	105
16	13
17	42
18	7
19	351
20	280
21	97
22	168
23	15
24	56
25	8
26	545
27	504
28	127
29	252
30	17
31	72
32	9
33	2561
34	1260
35	799
36	840
37	161
38	360
39	19
40	90
41	10
42	4159
43	2310
44	1121
45	1320
46	199
47	495
48	21
49	110
50	11

[2, 3, 7, 12, 4, 9, 20, 5, 49, 60, 11, 30, 6, 71, 105, 13, 42, 7, 351, 280, 97, 168, 15, 56, 8, 545, 504, 127, 252, 17, 72, 9, 2561, 1260, 799, 840, 161, 360, 19, 90, 10, 4159, 2310, 1121, 1320, 199, 495, 21, 110, 11]

cp's OEIS Frontend

A137767 Nontrivial numbers of the elements to the right of the central elements in writing first the numerator and then the denominator (left to right) of Leibniz's harmonic-like triangle.

Table of values

List of values