A152877 - cp's OEIS frontend

A152877 Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k consecutive triples of the form (odd,even,odd) and (even,odd,even) (0<=k<=n-2).

n	a(n)
0	1
1	1
2	2
3	4
4	2
5	16
6	0
7	8
8	60
9	24
10	24
11	12
12	288
13	144
14	216
15	0
16	72
17	1584
18	1296
19	1152
20	576
21	288
22	144
23	10368
24	9216
25	10368
26	4608
27	4608
28	0
29	1152
30	74880
31	83520
32	86400
33	60480
34	31680
35	17280
36	5760
37	2880
38	604800
39	748800
40	892800
41	576000
42	460800
43	172800
44	144000
45	0
46	28800

[1, 1, 2, 4, 2, 16, 0, 8, 60, 24, 24, 12, 288, 144, 216, 0, 72, 1584, 1296, 1152, 576, 288, 144, 10368, 9216, 10368, 4608, 4608, 0, 1152, 74880, 83520, 86400, 60480, 31680, 17280, 5760, 2880, 604800, 748800, 892800, 576000, 460800, 172800, 144000, 0, 28800]

cp's OEIS Frontend

A152877 Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k consecutive triples of the form (odd,even,odd) and (even,odd,even) (0<=k<=n-2).

Table of values

List of values