A083414 - cp's OEIS frontend

A083414 Write the numbers from 1 to n^2 consecutively in n rows of length n; let c(k) = number of primes in k-th column; a(n) = minimal c(k) for gcd(k,n) = 1.

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

[0, 1, 1, 2, 1, 4, 1, 2, 3, 5, 2, 6, 1, 5, 5, 5, 2, 10, 2, 6, 5, 8, 3, 9, 5, 8, 5, 9, 4, 17, 3, 9, 7, 9, 6, 15, 4, 9, 8, 13, 4, 21, 3, 11, 10, 11, 4, 17, 5, 15, 9, 14, 5, 20, 8, 14, 9, 14, 6, 27, 6, 15, 12, 14, 9, 26, 6, 15, 12, 23, 5, 25, 3, 15, 13, 17, 8, 29, 7, 20, 12, 17, 7, 32]

cp's OEIS Frontend

A083414 Write the numbers from 1 to n^2 consecutively in n rows of length n; let c(k) = number of primes in k-th column; a(n) = minimal c(k) for gcd(k,n) = 1.

Table of values

List of values

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

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

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