A068568 - cp's OEIS frontend

A068568 Let S = a subset of {n,n+1,n+2,..,n+m}, number of parts of S is more than 1. a(n) = smallest number m such that the product of parts of S is a square.

n	a(n)
0	1
1	3
2	4
3	5
4	5
5	5
6	6
7	7
8	7
9	7
10	8
11	9
12	8
13	8
14	7
15	9
16	9
17	10
18	9
19	9
20	8
21	7
22	10
23	9
24	8
25	10
26	9
27	8
28	12
29	13
30	12
31	13
32	12
33	11
34	14
35	13
36	13
37	13
38	12
39	11
40	10
41	13
42	12
43	11
44	10
45	9
46	8
47	7
48	6
49	14
50	13
51	14
52	13
53	13
54	12
55	11
56	16
57	18
58	17
59	16
60	15
61	16
62	15
63	14
64	14
65	13
66	14
67	17
68	16
69	15
70	14
71	17
72	16
73	17
74	16
75	15
76	15
77	14

[1, 3, 4, 5, 5, 5, 6, 7, 7, 7, 8, 9, 8, 8, 7, 9, 9, 10, 9, 9, 8, 7, 10, 9, 8, 10, 9, 8, 12, 13, 12, 13, 12, 11, 14, 13, 13, 13, 12, 11, 10, 13, 12, 11, 10, 9, 8, 7, 6, 14, 13, 14, 13, 13, 12, 11, 16, 18, 17, 16, 15, 16, 15, 14, 14, 13, 14, 17, 16, 15, 14, 17, 16, 17, 16, 15, 15, 14]

cp's OEIS Frontend

A068568 Let S = a subset of {n,n+1,n+2,..,n+m}, number of parts of S is more than 1. a(n) = smallest number m such that the product of parts of S is a square.

Table of values

List of values

n	a(n)
0	1
1	3
2	4
3	5
4	5
5	5
6	6
7	7
8	7
9	7
10	8
11	9
12	8
13	8
14	7
15	9
16	9
17	10
18	9
19	9
20	8
21	7
22	10
23	9
24	8
25	10
26	9
27	8
28	12
29	13
30	12
31	13
32	12
33	11
34	14
35	13
36	13
37	13
38	12
39	11
40	10
41	13
42	12
43	11
44	10
45	9
46	8
47	7
48	6
49	14
50	13
51	14
52	13
53	13
54	12
55	11
56	16
57	18
58	17
59	16
60	15
61	16
62	15
63	14
64	14
65	13
66	14
67	17
68	16
69	15
70	14
71	17
72	16
73	17
74	16
75	15
76	15
77	14

n	a(n)
0	1
1	3
2	4
3	5
4	5
5	5
6	6
7	7
8	7
9	7
10	8
11	9
12	8
13	8
14	7
15	9
16	9
17	10
18	9
19	9
20	8
21	7
22	10
23	9
24	8
25	10
26	9
27	8
28	12
29	13
30	12
31	13
32	12
33	11
34	14
35	13
36	13
37	13
38	12
39	11
40	10
41	13
42	12
43	11
44	10
45	9
46	8
47	7
48	6
49	14
50	13
51	14
52	13
53	13
54	12
55	11
56	16
57	18
58	17
59	16
60	15
61	16
62	15
63	14
64	14
65	13
66	14
67	17
68	16
69	15
70	14
71	17
72	16
73	17
74	16
75	15
76	15
77	14

n	a(n)
0	1
1	3
2	4
3	5
4	5
5	5
6	6
7	7
8	7
9	7
10	8
11	9
12	8
13	8
14	7
15	9
16	9
17	10
18	9
19	9
20	8
21	7
22	10
23	9
24	8
25	10
26	9
27	8
28	12
29	13
30	12
31	13
32	12
33	11
34	14
35	13
36	13
37	13
38	12
39	11
40	10
41	13
42	12
43	11
44	10
45	9
46	8
47	7
48	6
49	14
50	13
51	14
52	13
53	13
54	12
55	11
56	16
57	18
58	17
59	16
60	15
61	16
62	15
63	14
64	14
65	13
66	14
67	17
68	16
69	15
70	14
71	17
72	16
73	17
74	16
75	15
76	15
77	14