A145033 - cp's OEIS frontend

A145033 T(n,k) is the number of amenable quasi-idempotent order-decreasing partial one-one transformations (of an n-chain) of height k (height(alpha) = |Im(alpha)|).

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	5
8	6
9	1
10	1
11	7
12	14
13	10
14	1
15	1
16	9
17	25
18	30
19	15
20	1
21	1
22	11
23	39
24	65
25	55
26	21
27	1
28	1
29	13
30	56
31	119
32	140
33	91
34	28
35	1
36	1
37	15
38	76
39	196
40	294
41	266
42	140
43	36
44	1
45	1
46	17
47	99
48	300
49	546
50	630
51	462
52	204
53	45
54	1
55	1
56	19
57	125
58	435
59	930
60	1302
61	1218
62	750
63	285
64	55
65	1

[1, 1, 1, 1, 3, 1, 1, 5, 6, 1, 1, 7, 14, 10, 1, 1, 9, 25, 30, 15, 1, 1, 11, 39, 65, 55, 21, 1, 1, 13, 56, 119, 140, 91, 28, 1, 1, 15, 76, 196, 294, 266, 140, 36, 1, 1, 17, 99, 300, 546, 630, 462, 204, 45, 1, 1, 19, 125, 435, 930, 1302, 1218, 750, 285, 55, 1]

cp's OEIS Frontend

A145033 T(n,k) is the number of amenable quasi-idempotent order-decreasing partial one-one transformations (of an n-chain) of height k (height(alpha) = |Im(alpha)|).

Table of values

List of values