A363849 - cp's OEIS frontend

A363849 Triangular array read by rows. T(n,k) is the number of Green's H-classes of rank k in the semigroup of partial transformations, n >= 0, 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	1
4	6
5	1
6	1
7	21
8	18
9	1
10	1
11	60
12	150
13	40
14	1
15	1
16	155
17	900
18	650
19	75
20	1
21	1
22	378
23	4515
24	7000
25	2100
26	126
27	1
28	1
29	889
30	20286
31	59535
32	36750
33	5586
34	196
35	1
36	1
37	2040
38	84700
39	435120
40	486570
41	148176
42	12936
43	288
44	1
45	1
46	4599
47	335880
48	2864820
49	5358150
50	2876202
51	493920
52	27000
53	405
54	1

[1, 1, 1, 1, 6, 1, 1, 21, 18, 1, 1, 60, 150, 40, 1, 1, 155, 900, 650, 75, 1, 1, 378, 4515, 7000, 2100, 126, 1, 1, 889, 20286, 59535, 36750, 5586, 196, 1, 1, 2040, 84700, 435120, 486570, 148176, 12936, 288, 1, 1, 4599, 335880, 2864820, 5358150, 2876202, 493920, 27000, 405, 1]

cp's OEIS Frontend

A363849 Triangular array read by rows. T(n,k) is the number of Green's H-classes of rank k in the semigroup of partial transformations, n >= 0, 0 <= k <= n.

Table of values

List of values