A249249 - cp's OEIS frontend

A249249 Total number of occurrences of the consecutive step pattern given by the binary expansion of n (where 1=up and 0=down) in all permutations of [n].

n	a(n)
0	0
1	0
2	0
3	1
4	3
5	50
6	270
7	840
8	5376
9	166320
10	2903040
11	20956320
12	191600640
13	4203239040
14	29059430400
15	119870150400
16	1598268672000
17	112634352230400
18	4623936565248000
19	61498356317798400
20	1773991047628800000
21	69256610499428352000
22	1061556242901073920000

[0, 0, 0, 1, 3, 50, 270, 840, 5376, 166320, 2903040, 20956320, 191600640, 4203239040, 29059430400, 119870150400, 1598268672000, 112634352230400, 4623936565248000, 61498356317798400, 1773991047628800000, 69256610499428352000, 1061556242901073920000]

cp's OEIS Frontend

A249249 Total number of occurrences of the consecutive step pattern given by the binary expansion of n (where 1=up and 0=down) in all permutations of [n].

Table of values

List of values