A122823 - cp's OEIS frontend

A122823 Triangle read by rows: T(n,k) = count of increasing runs in two concatenated k-permutations of [n].

n	a(n)
1	2
2	7
3	11
4	15
5	96
6	132
7	26
8	378
9	2088
10	2664
11	40
12	1040
13	12960
14	66240
15	80640
16	57
17	2325
18	51600
19	594000
20	2894400
21	3412800
22	77
23	4536
24	157500
25	3225600
26	35380800
27	166924800
28	192326400
29	100
30	8036
31	402192
32	12877200
33	251193600
34	2667168000
35	12294374400

[2, 7, 11, 15, 96, 132, 26, 378, 2088, 2664, 40, 1040, 12960, 66240, 80640, 57, 2325, 51600, 594000, 2894400, 3412800, 77, 4536, 157500, 3225600, 35380800, 166924800, 192326400, 100, 8036, 402192, 12877200, 251193600, 2667168000, 12294374400]

cp's OEIS Frontend

A122823 Triangle read by rows: T(n,k) = count of increasing runs in two concatenated k-permutations of [n].

Table of values

List of values