A059427 - cp's OEIS frontend

A059427 Triangle read by rows: T(n,k) is the number of permutations of [n] with k alternating runs (n>=2, k>=1).

n	a(n)
2	2
3	2
4	4
5	2
6	12
7	10
8	2
9	28
10	58
11	32
12	2
13	60
14	236
15	300
16	122
17	2
18	124
19	836
20	1852
21	1682
22	544
23	2
24	252
25	2766
26	9576
27	14622
28	10332
29	2770
30	2
31	508
32	8814
33	45096
34	103326
35	119964
36	69298
37	15872
38	2
39	1020
40	27472
41	201060
42	650892
43	1106820
44	1034992
45	505500
46	101042
47	2
48	2044

[2, 2, 4, 2, 12, 10, 2, 28, 58, 32, 2, 60, 236, 300, 122, 2, 124, 836, 1852, 1682, 544, 2, 252, 2766, 9576, 14622, 10332, 2770, 2, 508, 8814, 45096, 103326, 119964, 69298, 15872, 2, 1020, 27472, 201060, 650892, 1106820, 1034992, 505500, 101042, 2, 2044]

cp's OEIS Frontend

A059427 Triangle read by rows: T(n,k) is the number of permutations of [n] with k alternating runs (n>=2, k>=1).

Table of values

List of values