A361296 - cp's OEIS frontend

A361296 A variant of payphone permutations: given a circular booth with n payphones, a(n) is the number ways for n people to choose the payphones in order, where each person chooses an unoccupied payphone such that the closest occupied payphone is as distant as possible.

n	a(n)
1	1
2	2
3	6
4	8
5	60
6	144
7	336
8	384
9	8640
10	57600
11	221760
12	967680
13	4193280
14	9031680
15	14515200
16	30965760
17	2368880640
18	50164531200
19	582465945600
20	7357464576000
21	50214695731200
22	245494068019200
23	1443672502272000
24	24103053950976000
25	200858782924800000
26	835572536967168000

[1, 2, 6, 8, 60, 144, 336, 384, 8640, 57600, 221760, 967680, 4193280, 9031680, 14515200, 30965760, 2368880640, 50164531200, 582465945600, 7357464576000, 50214695731200, 245494068019200, 1443672502272000, 24103053950976000, 200858782924800000, 835572536967168000]

cp's OEIS Frontend

A361296 A variant of payphone permutations: given a circular booth with n payphones, a(n) is the number ways for n people to choose the payphones in order, where each person chooses an unoccupied payphone such that the closest occupied payphone is as distant as possible.

Table of values

List of values