A277032 - cp's OEIS frontend

A277032 Number of permutations of [n] such that the minimal cyclic distance between elements of the same cycle equals one, a(1)=1 by convention.

n	a(n)
1	1
2	1
3	5
4	20
5	109
6	668
7	4801
8	38894
9	353811
10	3561512
11	39374609
12	474132730
13	6179650125
14	86676293916
15	1301952953989
16	20852719565694
17	354771488612075
18	6389625786835184
19	121456993304945749
20	2429966790591643402
21	51042656559451380013
22	1123165278137918510772

[1, 1, 5, 20, 109, 668, 4801, 38894, 353811, 3561512, 39374609, 474132730, 6179650125, 86676293916, 1301952953989, 20852719565694, 354771488612075, 6389625786835184, 121456993304945749, 2429966790591643402, 51042656559451380013, 1123165278137918510772]

cp's OEIS Frontend

A277032 Number of permutations of [n] such that the minimal cyclic distance between elements of the same cycle equals one, a(1)=1 by convention.

Table of values

List of values