A079510 - cp's OEIS frontend

A079510 Triangle T(n,k) read by rows; related to number of preorders.

n	a(n)
1	1
2	0
3	2
4	0
5	3
6	6
7	0
8	0
9	20
10	24
11	0
12	0
13	15
14	130
15	120
16	0
17	0
18	0
19	210
20	924
21	720
22	0
23	0
24	0
25	105
26	2380
27	7308
28	5040
29	0
30	0
31	0
32	0
33	2520
34	26432
35	64224
36	40320
37	0
38	0
39	0
40	0
41	945
42	44100
43	303660
44	623376
45	362880
46	0
47	0
48	0
49	0
50	0
51	34650
52	705320
53	3678840
54	6636960
55	3628800

[1, 0, 2, 0, 3, 6, 0, 0, 20, 24, 0, 0, 15, 130, 120, 0, 0, 0, 210, 924, 720, 0, 0, 0, 105, 2380, 7308, 5040, 0, 0, 0, 0, 2520, 26432, 64224, 40320, 0, 0, 0, 0, 945, 44100, 303660, 623376, 362880, 0, 0, 0, 0, 0, 34650, 705320, 3678840, 6636960, 3628800]

cp's OEIS Frontend

A079510 Triangle T(n,k) read by rows; related to number of preorders.

Table of values

List of values