A194640 - cp's OEIS frontend

A194640 Smallest image size for which the number of endofunctions (functions f:{1,2,...,n}->{1,2,...,n}) is a maximum.

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	4
7	5
8	5
9	6
10	7
11	7
12	8
13	8
14	9
15	10
16	10
17	11
18	12
19	12
20	13
21	13
22	14
23	15
24	15
25	16
26	17
27	17
28	18
29	19
30	19
31	20
32	20
33	21
34	22
35	22
36	23
37	24
38	24
39	25
40	25
41	26
42	27
43	27
44	28
45	29
46	29
47	30
48	31
49	31
50	32
51	32
52	33
53	34
54	34
55	35
56	36
57	36
58	37
59	38
60	38
61	39
62	39
63	40
64	41
65	41
66	42
67	43
68	43

[0, 1, 1, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 8, 9, 10, 10, 11, 12, 12, 13, 13, 14, 15, 15, 16, 17, 17, 18, 19, 19, 20, 20, 21, 22, 22, 23, 24, 24, 25, 25, 26, 27, 27, 28, 29, 29, 30, 31, 31, 32, 32, 33, 34, 34, 35, 36, 36, 37, 38, 38, 39, 39, 40, 41, 41, 42, 43, 43]

cp's OEIS Frontend

A194640 Smallest image size for which the number of endofunctions (functions f:{1,2,...,n}->{1,2,...,n}) is a maximum.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	4
7	5
8	5
9	6
10	7
11	7
12	8
13	8
14	9
15	10
16	10
17	11
18	12
19	12
20	13
21	13
22	14
23	15
24	15
25	16
26	17
27	17
28	18
29	19
30	19
31	20
32	20
33	21
34	22
35	22
36	23
37	24
38	24
39	25
40	25
41	26
42	27
43	27
44	28
45	29
46	29
47	30
48	31
49	31
50	32
51	32
52	33
53	34
54	34
55	35
56	36
57	36
58	37
59	38
60	38
61	39
62	39
63	40
64	41
65	41
66	42
67	43
68	43

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	4
7	5
8	5
9	6
10	7
11	7
12	8
13	8
14	9
15	10
16	10
17	11
18	12
19	12
20	13
21	13
22	14
23	15
24	15
25	16
26	17
27	17
28	18
29	19
30	19
31	20
32	20
33	21
34	22
35	22
36	23
37	24
38	24
39	25
40	25
41	26
42	27
43	27
44	28
45	29
46	29
47	30
48	31
49	31
50	32
51	32
52	33
53	34
54	34
55	35
56	36
57	36
58	37
59	38
60	38
61	39
62	39
63	40
64	41
65	41
66	42
67	43
68	43

n	a(n)
0	0
1	1
2	1
3	2
4	3
5	3
6	4
7	5
8	5
9	6
10	7
11	7
12	8
13	8
14	9
15	10
16	10
17	11
18	12
19	12
20	13
21	13
22	14
23	15
24	15
25	16
26	17
27	17
28	18
29	19
30	19
31	20
32	20
33	21
34	22
35	22
36	23
37	24
38	24
39	25
40	25
41	26
42	27
43	27
44	28
45	29
46	29
47	30
48	31
49	31
50	32
51	32
52	33
53	34
54	34
55	35
56	36
57	36
58	37
59	38
60	38
61	39
62	39
63	40
64	41
65	41
66	42
67	43
68	43