A187824 - cp's OEIS frontend

A187824 a(n) is the largest m such that n is congruent to -1, 0 or 1 mod k for all k from 1 to m.

n	a(n)
2	3
3	4
4	5
5	6
6	3
7	4
8	4
9	5
10	3
11	6
12	4
13	4
14	3
15	5
16	5
17	4
18	3
19	6
20	5
21	5
22	3
23	4
24	6
25	6
26	3
27	4
28	4
29	7
30	3
31	6
32	4
33	4
34	3
35	7
36	7
37	4
38	3
39	5
40	5
41	8
42	3
43	4
44	5
45	5
46	3
47	4
48	4
49	8
50	3
51	5
52	4
53	4
54	3
55	9
56	5
57	4
58	3
59	6
60	6
61	6
62	3
63	4
64	5
65	6
66	3
67	4
68	4
69	5
70	3
71	10
72	4
73	4
74	3
75	5
76	5
77	4
78	3
79	6
80	5
81	5
82	3
83	4
84	7
85	7
86	3
87	4
88	4
89	6
90	3
91	7
92	4
93	4
94	3
95	6
96	6
97	4
98	3
99	5
100	5
101	6
102	3

[3, 4, 5, 6, 3, 4, 4, 5, 3, 6, 4, 4, 3, 5, 5, 4, 3, 6, 5, 5, 3, 4, 6, 6, 3, 4, 4, 7, 3, 6, 4, 4, 3, 7, 7, 4, 3, 5, 5, 8, 3, 4, 5, 5, 3, 4, 4, 8, 3, 5, 4, 4, 3, 9, 5, 4, 3, 6, 6, 6, 3, 4, 5, 6, 3, 4, 4, 5, 3, 10, 4, 4, 3, 5, 5, 4, 3, 6, 5, 5, 3, 4, 7, 7, 3, 4, 4, 6, 3, 7, 4, 4, 3, 6, 6, 4, 3, 5, 5, 6, 3]

cp's OEIS Frontend

A187824 a(n) is the largest m such that n is congruent to -1, 0 or 1 mod k for all k from 1 to m.

Table of values

List of values

n	a(n)
2	3
3	4
4	5
5	6
6	3
7	4
8	4
9	5
10	3
11	6
12	4
13	4
14	3
15	5
16	5
17	4
18	3
19	6
20	5
21	5
22	3
23	4
24	6
25	6
26	3
27	4
28	4
29	7
30	3
31	6
32	4
33	4
34	3
35	7
36	7
37	4
38	3
39	5
40	5
41	8
42	3
43	4
44	5
45	5
46	3
47	4
48	4
49	8
50	3
51	5
52	4
53	4
54	3
55	9
56	5
57	4
58	3
59	6
60	6
61	6
62	3
63	4
64	5
65	6
66	3
67	4
68	4
69	5
70	3
71	10
72	4
73	4
74	3
75	5
76	5
77	4
78	3
79	6
80	5
81	5
82	3
83	4
84	7
85	7
86	3
87	4
88	4
89	6
90	3
91	7
92	4
93	4
94	3
95	6
96	6
97	4
98	3
99	5
100	5
101	6
102	3

n	a(n)
2	3
3	4
4	5
5	6
6	3
7	4
8	4
9	5
10	3
11	6
12	4
13	4
14	3
15	5
16	5
17	4
18	3
19	6
20	5
21	5
22	3
23	4
24	6
25	6
26	3
27	4
28	4
29	7
30	3
31	6
32	4
33	4
34	3
35	7
36	7
37	4
38	3
39	5
40	5
41	8
42	3
43	4
44	5
45	5
46	3
47	4
48	4
49	8
50	3
51	5
52	4
53	4
54	3
55	9
56	5
57	4
58	3
59	6
60	6
61	6
62	3
63	4
64	5
65	6
66	3
67	4
68	4
69	5
70	3
71	10
72	4
73	4
74	3
75	5
76	5
77	4
78	3
79	6
80	5
81	5
82	3
83	4
84	7
85	7
86	3
87	4
88	4
89	6
90	3
91	7
92	4
93	4
94	3
95	6
96	6
97	4
98	3
99	5
100	5
101	6
102	3

n	a(n)
2	3
3	4
4	5
5	6
6	3
7	4
8	4
9	5
10	3
11	6
12	4
13	4
14	3
15	5
16	5
17	4
18	3
19	6
20	5
21	5
22	3
23	4
24	6
25	6
26	3
27	4
28	4
29	7
30	3
31	6
32	4
33	4
34	3
35	7
36	7
37	4
38	3
39	5
40	5
41	8
42	3
43	4
44	5
45	5
46	3
47	4
48	4
49	8
50	3
51	5
52	4
53	4
54	3
55	9
56	5
57	4
58	3
59	6
60	6
61	6
62	3
63	4
64	5
65	6
66	3
67	4
68	4
69	5
70	3
71	10
72	4
73	4
74	3
75	5
76	5
77	4
78	3
79	6
80	5
81	5
82	3
83	4
84	7
85	7
86	3
87	4
88	4
89	6
90	3
91	7
92	4
93	4
94	3
95	6
96	6
97	4
98	3
99	5
100	5
101	6
102	3