A316568 - cp's OEIS frontend

A316568 Largest k such that 1^2 + n, 2^2 + n, ..., k^2 + n are composite.

n	a(n)
1	0
2	0
3	1
4	0
5	5
6	0
7	1
8	2
9	1
10	0
11	5
12	0
13	1
14	2
15	1
16	0
17	5
18	0
19	1
20	2
21	3
22	0
23	5
24	6
25	1
26	8
27	1
28	0
29	11
30	0
31	3
32	2
33	1
34	2
35	5
36	0
37	1
38	2
39	1
40	0
41	23
42	0
43	1
44	2
45	3
46	0
47	5
48	4
49	1
50	2
51	3
52	0
53	5
54	4
55	1
56	8
57	1
58	0
59	17
60	0
61	5
62	2
63	1
64	2
65	5
66	0
67	1
68	8
69	1
70	0
71	5
72	0
73	3
74	2
75	1
76	4
77	5
78	0
79	1
80	2
81	3
82	0
83	11
84	4
85	1
86	8
87	3
88	0
89	11
90	6
91	3
92	2
93	1
94	2
95	5
96	0
97	1
98	2
99	1
100	0

[0, 0, 1, 0, 5, 0, 1, 2, 1, 0, 5, 0, 1, 2, 1, 0, 5, 0, 1, 2, 3, 0, 5, 6, 1, 8, 1, 0, 11, 0, 3, 2, 1, 2, 5, 0, 1, 2, 1, 0, 23, 0, 1, 2, 3, 0, 5, 4, 1, 2, 3, 0, 5, 4, 1, 8, 1, 0, 17, 0, 5, 2, 1, 2, 5, 0, 1, 8, 1, 0, 5, 0, 3, 2, 1, 4, 5, 0, 1, 2, 3, 0, 11, 4, 1, 8, 3, 0, 11, 6, 3, 2, 1, 2, 5, 0, 1, 2, 1, 0]

cp's OEIS Frontend

A316568 Largest k such that 1^2 + n, 2^2 + n, ..., k^2 + n are composite.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	5
6	0
7	1
8	2
9	1
10	0
11	5
12	0
13	1
14	2
15	1
16	0
17	5
18	0
19	1
20	2
21	3
22	0
23	5
24	6
25	1
26	8
27	1
28	0
29	11
30	0
31	3
32	2
33	1
34	2
35	5
36	0
37	1
38	2
39	1
40	0
41	23
42	0
43	1
44	2
45	3
46	0
47	5
48	4
49	1
50	2
51	3
52	0
53	5
54	4
55	1
56	8
57	1
58	0
59	17
60	0
61	5
62	2
63	1
64	2
65	5
66	0
67	1
68	8
69	1
70	0
71	5
72	0
73	3
74	2
75	1
76	4
77	5
78	0
79	1
80	2
81	3
82	0
83	11
84	4
85	1
86	8
87	3
88	0
89	11
90	6
91	3
92	2
93	1
94	2
95	5
96	0
97	1
98	2
99	1
100	0

n	a(n)
1	0
2	0
3	1
4	0
5	5
6	0
7	1
8	2
9	1
10	0
11	5
12	0
13	1
14	2
15	1
16	0
17	5
18	0
19	1
20	2
21	3
22	0
23	5
24	6
25	1
26	8
27	1
28	0
29	11
30	0
31	3
32	2
33	1
34	2
35	5
36	0
37	1
38	2
39	1
40	0
41	23
42	0
43	1
44	2
45	3
46	0
47	5
48	4
49	1
50	2
51	3
52	0
53	5
54	4
55	1
56	8
57	1
58	0
59	17
60	0
61	5
62	2
63	1
64	2
65	5
66	0
67	1
68	8
69	1
70	0
71	5
72	0
73	3
74	2
75	1
76	4
77	5
78	0
79	1
80	2
81	3
82	0
83	11
84	4
85	1
86	8
87	3
88	0
89	11
90	6
91	3
92	2
93	1
94	2
95	5
96	0
97	1
98	2
99	1
100	0

n	a(n)
1	0
2	0
3	1
4	0
5	5
6	0
7	1
8	2
9	1
10	0
11	5
12	0
13	1
14	2
15	1
16	0
17	5
18	0
19	1
20	2
21	3
22	0
23	5
24	6
25	1
26	8
27	1
28	0
29	11
30	0
31	3
32	2
33	1
34	2
35	5
36	0
37	1
38	2
39	1
40	0
41	23
42	0
43	1
44	2
45	3
46	0
47	5
48	4
49	1
50	2
51	3
52	0
53	5
54	4
55	1
56	8
57	1
58	0
59	17
60	0
61	5
62	2
63	1
64	2
65	5
66	0
67	1
68	8
69	1
70	0
71	5
72	0
73	3
74	2
75	1
76	4
77	5
78	0
79	1
80	2
81	3
82	0
83	11
84	4
85	1
86	8
87	3
88	0
89	11
90	6
91	3
92	2
93	1
94	2
95	5
96	0
97	1
98	2
99	1
100	0