A289710 - cp's OEIS frontend

A289710 Triangle T(n,r) read by rows: order of the semigroup of orientation-preserving partial transformations of n elements with breath r.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	4
6	1
7	9
8	27
9	24
10	1
11	16
12	96
13	208
14	128
15	1
16	25
17	250
18	950
19	1325
20	610
21	1
22	36
23	540
24	3120
25	7290
26	7416
27	2742
28	1
29	49
30	1029
31	8330
32	28665
33	47922
34	38563
35	11970
36	1
37	64
38	1792
39	19264
40	90720
41	219968
42	287168
43	191808
44	51424
45	1
46	81
47	2916
48	40068
49	246078
50	806274
51	1509732
52	1619676
53	926073
54	218718

[1, 1, 1, 1, 4, 4, 1, 9, 27, 24, 1, 16, 96, 208, 128, 1, 25, 250, 950, 1325, 610, 1, 36, 540, 3120, 7290, 7416, 2742, 1, 49, 1029, 8330, 28665, 47922, 38563, 11970, 1, 64, 1792, 19264, 90720, 219968, 287168, 191808, 51424, 1, 81, 2916, 40068, 246078, 806274, 1509732, 1619676, 926073, 218718]

cp's OEIS Frontend

A289710 Triangle T(n,r) read by rows: order of the semigroup of orientation-preserving partial transformations of n elements with breath r.

Table of values

List of values