A097592 - cp's OEIS frontend

A097592 Triangle read by rows: T(n,k) is the number of permutations of [n] with exactly k increasing runs of even length.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	4
6	7
7	12
8	5
9	25
10	52
11	43
12	102
13	299
14	258
15	61
16	531
17	1750
18	1853
19	906
20	3141
21	11195
22	15634
23	8965
24	1385
25	20218
26	83074
27	133697
28	94398
29	31493
30	146215
31	675304
32	1207256
33	1088575
34	460929
35	50521
36	1174889
37	5880354
38	11974457
39	12625694
40	6632158

[1, 1, 1, 1, 2, 4, 7, 12, 5, 25, 52, 43, 102, 299, 258, 61, 531, 1750, 1853, 906, 3141, 11195, 15634, 8965, 1385, 20218, 83074, 133697, 94398, 31493, 146215, 675304, 1207256, 1088575, 460929, 50521, 1174889, 5880354, 11974457, 12625694, 6632158]

cp's OEIS Frontend

A097592 Triangle read by rows: T(n,k) is the number of permutations of [n] with exactly k increasing runs of even length.

Table of values

List of values