A177263 - cp's OEIS frontend

A177263 Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k as the last entry in the first block (1<=k<=n).

n	a(n)
1	1
2	0
3	2
4	1
5	1
6	4
7	4
8	5
9	5
10	10
11	18
12	22
13	23
14	23
15	34
16	96
17	114
18	118
19	119
20	119
21	154
22	600
23	696
24	714
25	718
26	719
27	719
28	874
29	4320
30	4920
31	5016
32	5034
33	5038
34	5039
35	5039
36	5914
37	35280
38	39600
39	40200
40	40296
41	40314
42	40318
43	40319
44	40319
45	46234
46	322560
47	357840
48	362160
49	362760
50	362856
51	362874
52	362878
53	362879
54	362879
55	409114

[1, 0, 2, 1, 1, 4, 4, 5, 5, 10, 18, 22, 23, 23, 34, 96, 114, 118, 119, 119, 154, 600, 696, 714, 718, 719, 719, 874, 4320, 4920, 5016, 5034, 5038, 5039, 5039, 5914, 35280, 39600, 40200, 40296, 40314, 40318, 40319, 40319, 46234, 322560, 357840, 362160, 362760, 362856, 362874, 362878, 362879, 362879, 409114]

cp's OEIS Frontend

A177263 Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k as the last entry in the first block (1<=k<=n).

Table of values

List of values