A337107 - cp's OEIS frontend

A337107 Irregular triangle read by rows where T(n,k) is the number of strict length-k chains of divisors from n! to 1.

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	2
7	0
8	1
9	6
10	9
11	4
12	0
13	1
14	14
15	45
16	52
17	20
18	0
19	1
20	28
21	183
22	496
23	655
24	420
25	105
26	0
27	1
28	58
29	633
30	2716
31	5755
32	6450
33	3675
34	840
35	0
36	1
37	94
38	1659
39	11996
40	46235
41	106806
42	155869
43	145384
44	84276
45	27720
46	3960

[1, 0, 1, 0, 1, 2, 0, 1, 6, 9, 4, 0, 1, 14, 45, 52, 20, 0, 1, 28, 183, 496, 655, 420, 105, 0, 1, 58, 633, 2716, 5755, 6450, 3675, 840, 0, 1, 94, 1659, 11996, 46235, 106806, 155869, 145384, 84276, 27720, 3960]

cp's OEIS Frontend

A337107 Irregular triangle read by rows where T(n,k) is the number of strict length-k chains of divisors from n! to 1.

Table of values

List of values