A187783 - cp's OEIS frontend

A187783 De Bruijn's triangle, T(m,n) = (m*n)!/(n!^m) read by downward antidiagonals.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	1
10	1
11	1
12	6
13	6
14	1
15	1
16	1
17	20
18	90
19	24
20	1
21	1
22	1
23	70
24	1680
25	2520
26	120
27	1
28	1
29	1
30	252
31	34650
32	369600
33	113400
34	720
35	1
36	1
37	1
38	924
39	756756
40	63063000
41	168168000
42	7484400
43	5040
44	1

[1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 6, 6, 1, 1, 1, 20, 90, 24, 1, 1, 1, 70, 1680, 2520, 120, 1, 1, 1, 252, 34650, 369600, 113400, 720, 1, 1, 1, 924, 756756, 63063000, 168168000, 7484400, 5040, 1]

cp's OEIS Frontend

A187783 De Bruijn's triangle, T(m,n) = (m*n)!/(n!^m) read by downward antidiagonals.

Table of values

List of values