A117986 - cp's OEIS frontend

A117986 Number of functions f:[n]->[n] such that f[(xy) mod n]=[f(x)f(y)] mod n for all x,y in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.

n	a(n)
1	1
2	3
3	4
4	6
5	6
6	35
7	8
8	50
9	20
10	55
11	12
12	160
13	14
14	75
15	160
16	194
17	18
18	195
19	20
20	256
21	220
22	115
23	24
24	3936
25	102
26	135
27	164
28	352
29	30
30	5301
31	32
32	770
33	340
34	175
35	352
36	2496
37	38
38	195
39	400
40	6396
41	42
42	7353
43	44
44	544
45	928
46	235
47	48
48	15456
49	296
50	1015
51	520
52	640
53	54
54	1635
55	544
56	8856

[1, 3, 4, 6, 6, 35, 8, 50, 20, 55, 12, 160, 14, 75, 160, 194, 18, 195, 20, 256, 220, 115, 24, 3936, 102, 135, 164, 352, 30, 5301, 32, 770, 340, 175, 352, 2496, 38, 195, 400, 6396, 42, 7353, 44, 544, 928, 235, 48, 15456, 296, 1015, 520, 640, 54, 1635, 544, 8856]

cp's OEIS Frontend

A117986 Number of functions f:[n]->[n] such that f[(xy) mod n]=[f(x)f(y)] mod n for all x,y in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.

Table of values

List of values

cp's OEIS Frontend

A117986 Number of functions f:[n]->[n] such that f[(x*y) mod n]=[f(x)*f(y)] mod n for all x,y in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.

Table of values

List of values

A117986 Number of functions f:[n]->[n] such that f[(xy) mod n]=[f(x)f(y)] mod n for all x,y in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.