A229543 - cp's OEIS frontend

A229543 Number of undirected circular permutations i_0, i_1, ..., i_n of 0, 1, ..., n such that all the n+1 adjacent distances |i_0-i_1|, |i_1-i_2|, ..., |i_{n-1}-i_n|, |i_n-i_0| are perfect squares.

n	a(n)
1	1
2	0
3	0
4	1
5	0
6	1
7	1
8	1
9	9
10	14
11	32
12	184
13	123
14	696
15	935
16	6554
17	21105
18	60756
19	241780
20	517970
21	1835109
22	5741024
23	16091004
24	63590090
25	285113492
26	1098219807

[1, 0, 0, 1, 0, 1, 1, 1, 9, 14, 32, 184, 123, 696, 935, 6554, 21105, 60756, 241780, 517970, 1835109, 5741024, 16091004, 63590090, 285113492, 1098219807]

cp's OEIS Frontend

A229543 Number of undirected circular permutations i_0, i_1, ..., i_n of 0, 1, ..., n such that all the n+1 adjacent distances |i_0-i_1|, |i_1-i_2|, ..., |i_{n-1}-i_n|, |i_n-i_0| are perfect squares.

Table of values

List of values