A216242 - cp's OEIS frontend

A216242 Triangular array read by rows: T(n,k) is the number of functions f:{1,2,...,n}->{1,2,...,n} with a height of k; n>=1, 0<=k<=n-1.

n	a(n)
1	1
2	2
3	2
4	6
5	15
6	6
7	24
8	124
9	84
10	24
11	120
12	1185
13	1160
14	540
15	120
16	720
17	13086
18	17610
19	10560
20	3960
21	720
22	5040
23	165361
24	296772
25	214410
26	104160
27	32760
28	5040
29	40320
30	2363320
31	5536440
32	4692576
33	2686320
34	1115520
35	302400
36	40320
37	362880
38	37780497
39	113680800
40	111488328
41	72080064
42	35637840
43	12942720
44	3084480
45	362880

[1, 2, 2, 6, 15, 6, 24, 124, 84, 24, 120, 1185, 1160, 540, 120, 720, 13086, 17610, 10560, 3960, 720, 5040, 165361, 296772, 214410, 104160, 32760, 5040, 40320, 2363320, 5536440, 4692576, 2686320, 1115520, 302400, 40320, 362880, 37780497, 113680800, 111488328, 72080064, 35637840, 12942720, 3084480, 362880]

cp's OEIS Frontend

A216242 Triangular array read by rows: T(n,k) is the number of functions f:{1,2,...,n}->{1,2,...,n} with a height of k; n>=1, 0<=k<=n-1.

Table of values

List of values