A293458 - cp's OEIS frontend

A293458 Numerator of probability that a permutation of elements of some subset of set {1,2,...,n} is a permutation of elements of some set of the form 1..k, k <= n.

n	a(n)
1	1
2	1
3	5
4	17
5	77
6	437
7	2957
8	23117
9	204557
10	2018957
11	21977357
12	261478157
13	3374988557
14	46964134157
15	700801318157
16	11162196262157
17	189005910310157
18	3390192763174157
19	64212742967590157
20	1280663747055910157
21	26826134832910630157
22	588826498721714470157

[1, 1, 5, 17, 77, 437, 2957, 23117, 204557, 2018957, 21977357, 261478157, 3374988557, 46964134157, 700801318157, 11162196262157, 189005910310157, 3390192763174157, 64212742967590157, 1280663747055910157, 26826134832910630157, 588826498721714470157]

cp's OEIS Frontend

A293458 Numerator of probability that a permutation of elements of some subset of set {1,2,...,n} is a permutation of elements of some set of the form 1..k, k <= n.

Table of values

List of values