A255009 - cp's OEIS frontend

A255009 Array T(n,k) read by ascending antidiagonals, where T(n,k) is the denominator of polygamma(n, 1) - polygamma(n, k).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	4
9	6
10	1
11	1
12	4
13	36
14	12
15	1
16	1
17	8
18	108
19	144
20	60
21	1
22	1
23	4
24	216
25	864
26	3600
27	20
28	1
29	1
30	8
31	324
32	3456
33	108000
34	3600
35	140
36	1
37	1
38	8
39	1944
40	10368
41	2160000
42	12000
43	176400
44	280
45	1
46	1
47	16
48	1944
49	124416
50	32400000
51	2160000
52	4116000

[1, 1, 1, 1, 1, 2, 1, 1, 4, 6, 1, 1, 4, 36, 12, 1, 1, 8, 108, 144, 60, 1, 1, 4, 216, 864, 3600, 20, 1, 1, 8, 324, 3456, 108000, 3600, 140, 1, 1, 8, 1944, 10368, 2160000, 12000, 176400, 280, 1, 1, 16, 1944, 124416, 32400000, 2160000, 4116000]

cp's OEIS Frontend

A255009 Array T(n,k) read by ascending antidiagonals, where T(n,k) is the denominator of polygamma(n, 1) - polygamma(n, k).

Table of values

List of values