A117988 - cp's OEIS frontend

A117988 Number of functions f:[n]->[n] such that f[(x^2) mod n]=[f(x)^2] mod n for all x in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.

n	a(n)
1	1
2	4
3	6
4	16
5	18
6	576
7	78
8	1728
9	1365
10	5184
11	486
12	2985984
13	3474
14	389376
15	13583700
16	268435456
17	65538
18	119246400
19	45006
20	39261044736
21	21400013700
22	15116544
23	67590
24	45476068117708800
25	8696104065
26	772395264
27	19496328075
28	1822309056774144
29	231340050

[1, 4, 6, 16, 18, 576, 78, 1728, 1365, 5184, 486, 2985984, 3474, 389376, 13583700, 268435456, 65538, 119246400, 45006, 39261044736, 21400013700, 15116544, 67590, 45476068117708800, 8696104065, 772395264, 19496328075, 1822309056774144, 231340050]

cp's OEIS Frontend

A117988 Number of functions f:[n]->[n] such that f[(x^2) mod n]=[f(x)^2] mod n for all x in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.

Table of values

List of values