A345462 - cp's OEIS frontend

A345462 Triangle T(n,k) (n >= 1, 0 <= k <= n-1) read by rows: number of distinct permutations after k steps of the "first transposition" algorithm.

n	a(n)
1	1
2	2
3	1
4	6
5	3
6	1
7	24
8	13
9	4
10	1
11	120
12	67
13	23
14	5
15	1
16	720
17	411
18	146
19	36
20	6
21	1
22	5040
23	2921
24	1067
25	272
26	52
27	7
28	1
29	40320
30	23633
31	8800
32	2311
33	456
34	71
35	8
36	1
37	362880
38	214551
39	81055
40	21723
41	4419
42	709
43	93
44	9
45	1
46	3628800
47	2160343
48	825382
49	224650
50	46654
51	7720
52	1042
53	118
54	10
55	1

[1, 2, 1, 6, 3, 1, 24, 13, 4, 1, 120, 67, 23, 5, 1, 720, 411, 146, 36, 6, 1, 5040, 2921, 1067, 272, 52, 7, 1, 40320, 23633, 8800, 2311, 456, 71, 8, 1, 362880, 214551, 81055, 21723, 4419, 709, 93, 9, 1, 3628800, 2160343, 825382, 224650, 46654, 7720, 1042, 118, 10, 1]

cp's OEIS Frontend

A345462 Triangle T(n,k) (n >= 1, 0 <= k <= n-1) read by rows: number of distinct permutations after k steps of the "first transposition" algorithm.

Table of values

List of values