A064764 - cp's OEIS frontend

A064764 Largest integer m such that every permutation (p_1, ..., p_n) of (1, ..., n) satisfies lcm(p_i, p_{i+1}) >= m for some i, 1 <= i <= n-1.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	6
7	12
8	12
9	12
10	12
11	18
12	18
13	24
14	24
15	24
16	24
17	35
18	35
19	44
20	44
21	44
22	44
23	55
24	55
25	55
26	55
27	55
28	55
29	68
30	68
31	85
32	85
33	85
34	85
35	85
36	85
37	102
38	102
39	102
40	102
41	119
42	119
43	145
44	145
45	145
46	145
47	174
48	174
49	174
50	174
51	174
52	174
53	203
54	203
55	203
56	203
57	203
58	203
59	232
60	232
61	261
62	261
63	261

[1, 2, 3, 4, 6, 6, 12, 12, 12, 12, 18, 18, 24, 24, 24, 24, 35, 35, 44, 44, 44, 44, 55, 55, 55, 55, 55, 55, 68, 68, 85, 85, 85, 85, 85, 85, 102, 102, 102, 102, 119, 119, 145, 145, 145, 145, 174, 174, 174, 174, 174, 174, 203, 203, 203, 203, 203, 203, 232, 232, 261, 261, 261]

cp's OEIS Frontend

A064764 Largest integer m such that every permutation (p_1, ..., p_n) of (1, ..., n) satisfies lcm(p_i, p_{i+1}) >= m for some i, 1 <= i <= n-1.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	6
7	12
8	12
9	12
10	12
11	18
12	18
13	24
14	24
15	24
16	24
17	35
18	35
19	44
20	44
21	44
22	44
23	55
24	55
25	55
26	55
27	55
28	55
29	68
30	68
31	85
32	85
33	85
34	85
35	85
36	85
37	102
38	102
39	102
40	102
41	119
42	119
43	145
44	145
45	145
46	145
47	174
48	174
49	174
50	174
51	174
52	174
53	203
54	203
55	203
56	203
57	203
58	203
59	232
60	232
61	261
62	261
63	261

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	6
7	12
8	12
9	12
10	12
11	18
12	18
13	24
14	24
15	24
16	24
17	35
18	35
19	44
20	44
21	44
22	44
23	55
24	55
25	55
26	55
27	55
28	55
29	68
30	68
31	85
32	85
33	85
34	85
35	85
36	85
37	102
38	102
39	102
40	102
41	119
42	119
43	145
44	145
45	145
46	145
47	174
48	174
49	174
50	174
51	174
52	174
53	203
54	203
55	203
56	203
57	203
58	203
59	232
60	232
61	261
62	261
63	261

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	6
7	12
8	12
9	12
10	12
11	18
12	18
13	24
14	24
15	24
16	24
17	35
18	35
19	44
20	44
21	44
22	44
23	55
24	55
25	55
26	55
27	55
28	55
29	68
30	68
31	85
32	85
33	85
34	85
35	85
36	85
37	102
38	102
39	102
40	102
41	119
42	119
43	145
44	145
45	145
46	145
47	174
48	174
49	174
50	174
51	174
52	174
53	203
54	203
55	203
56	203
57	203
58	203
59	232
60	232
61	261
62	261
63	261