A083382 - cp's OEIS frontend

A083382 Write the numbers from 1 to n^2 consecutively in n rows of length n; a(n) = minimal number of primes in a row.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	1
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	1
21	2
22	2
23	2
24	2
25	2
26	3
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	3
35	3
36	3
37	2
38	2
39	2
40	2
41	3
42	4
43	3
44	3
45	4
46	3
47	3
48	4
49	3
50	3
51	4
52	4
53	4
54	3
55	3
56	4
57	5
58	4
59	3
60	4
61	5
62	4
63	5
64	4
65	5
66	5
67	5
68	5
69	5
70	5
71	5
72	5
73	5
74	5
75	6
76	7
77	6
78	4
79	5
80	6
81	6
82	5
83	6
84	6
85	6
86	6
87	6
88	7
89	7
90	6
91	6
92	6
93	7
94	7
95	7
96	7
97	6
98	6
99	7
100	7
101	7

[0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 2, 3, 3, 2, 2, 3, 3, 3, 3, 3, 2, 2, 2, 2, 3, 4, 3, 3, 4, 3, 3, 4, 3, 3, 4, 4, 4, 3, 3, 4, 5, 4, 3, 4, 5, 4, 5, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 7, 6, 4, 5, 6, 6, 5, 6, 6, 6, 6, 6, 7, 7, 6, 6, 6, 7, 7, 7, 7, 6, 6, 7, 7, 7]

cp's OEIS Frontend

A083382 Write the numbers from 1 to n^2 consecutively in n rows of length n; a(n) = minimal number of primes in a row.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	1
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	1
21	2
22	2
23	2
24	2
25	2
26	3
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	3
35	3
36	3
37	2
38	2
39	2
40	2
41	3
42	4
43	3
44	3
45	4
46	3
47	3
48	4
49	3
50	3
51	4
52	4
53	4
54	3
55	3
56	4
57	5
58	4
59	3
60	4
61	5
62	4
63	5
64	4
65	5
66	5
67	5
68	5
69	5
70	5
71	5
72	5
73	5
74	5
75	6
76	7
77	6
78	4
79	5
80	6
81	6
82	5
83	6
84	6
85	6
86	6
87	6
88	7
89	7
90	6
91	6
92	6
93	7
94	7
95	7
96	7
97	6
98	6
99	7
100	7
101	7

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	1
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	1
21	2
22	2
23	2
24	2
25	2
26	3
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	3
35	3
36	3
37	2
38	2
39	2
40	2
41	3
42	4
43	3
44	3
45	4
46	3
47	3
48	4
49	3
50	3
51	4
52	4
53	4
54	3
55	3
56	4
57	5
58	4
59	3
60	4
61	5
62	4
63	5
64	4
65	5
66	5
67	5
68	5
69	5
70	5
71	5
72	5
73	5
74	5
75	6
76	7
77	6
78	4
79	5
80	6
81	6
82	5
83	6
84	6
85	6
86	6
87	6
88	7
89	7
90	6
91	6
92	6
93	7
94	7
95	7
96	7
97	6
98	6
99	7
100	7
101	7

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	1
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	1
21	2
22	2
23	2
24	2
25	2
26	3
27	2
28	3
29	3
30	2
31	2
32	3
33	3
34	3
35	3
36	3
37	2
38	2
39	2
40	2
41	3
42	4
43	3
44	3
45	4
46	3
47	3
48	4
49	3
50	3
51	4
52	4
53	4
54	3
55	3
56	4
57	5
58	4
59	3
60	4
61	5
62	4
63	5
64	4
65	5
66	5
67	5
68	5
69	5
70	5
71	5
72	5
73	5
74	5
75	6
76	7
77	6
78	4
79	5
80	6
81	6
82	5
83	6
84	6
85	6
86	6
87	6
88	7
89	7
90	6
91	6
92	6
93	7
94	7
95	7
96	7
97	6
98	6
99	7
100	7
101	7