A037039 - cp's OEIS frontend

A037039 Least k such that 4nk+1 is a prime.

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	1
8	3
9	1
10	1
11	2
12	2
13	1
14	2
15	1
16	3
17	2
18	1
19	3
20	3
21	4
22	1
23	3
24	1
25	1
26	3
27	1
28	1
29	2
30	2
31	3
32	2
33	3
34	1
35	2
36	3
37	1
38	3
39	1
40	4
41	5
42	2
43	1
44	2
45	1
46	7
47	5
48	1
49	1
50	2
51	2
52	6
53	5
54	2
55	3
56	2
57	1
58	1
59	3
60	1
61	3
62	6
63	3
64	1
65	2
66	5
67	1
68	5
69	1
70	1
71	2
72	2
73	1
74	2
75	2
76	4
77	2
78	1
79	1
80	2
81	4
82	7
83	3
84	1
85	3
86	3
87	1
88	1
89	3
90	5
91	3
92	9
93	1
94	3
95	2
96	2
97	1
98	8
99	1
100	1
101	2
102	1
103	3
104	3
105	1

[1, 2, 1, 1, 2, 3, 1, 3, 1, 1, 2, 2, 1, 2, 1, 3, 2, 1, 3, 3, 4, 1, 3, 1, 1, 3, 1, 1, 2, 2, 3, 2, 3, 1, 2, 3, 1, 3, 1, 4, 5, 2, 1, 2, 1, 7, 5, 1, 1, 2, 2, 6, 5, 2, 3, 2, 1, 1, 3, 1, 3, 6, 3, 1, 2, 5, 1, 5, 1, 1, 2, 2, 1, 2, 2, 4, 2, 1, 1, 2, 4, 7, 3, 1, 3, 3, 1, 1, 3, 5, 3, 9, 1, 3, 2, 2, 1, 8, 1, 1, 2, 1, 3, 3, 1]

cp's OEIS Frontend

A037039 Least k such that 4nk+1 is a prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	1
8	3
9	1
10	1
11	2
12	2
13	1
14	2
15	1
16	3
17	2
18	1
19	3
20	3
21	4
22	1
23	3
24	1
25	1
26	3
27	1
28	1
29	2
30	2
31	3
32	2
33	3
34	1
35	2
36	3
37	1
38	3
39	1
40	4
41	5
42	2
43	1
44	2
45	1
46	7
47	5
48	1
49	1
50	2
51	2
52	6
53	5
54	2
55	3
56	2
57	1
58	1
59	3
60	1
61	3
62	6
63	3
64	1
65	2
66	5
67	1
68	5
69	1
70	1
71	2
72	2
73	1
74	2
75	2
76	4
77	2
78	1
79	1
80	2
81	4
82	7
83	3
84	1
85	3
86	3
87	1
88	1
89	3
90	5
91	3
92	9
93	1
94	3
95	2
96	2
97	1
98	8
99	1
100	1
101	2
102	1
103	3
104	3
105	1

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	1
8	3
9	1
10	1
11	2
12	2
13	1
14	2
15	1
16	3
17	2
18	1
19	3
20	3
21	4
22	1
23	3
24	1
25	1
26	3
27	1
28	1
29	2
30	2
31	3
32	2
33	3
34	1
35	2
36	3
37	1
38	3
39	1
40	4
41	5
42	2
43	1
44	2
45	1
46	7
47	5
48	1
49	1
50	2
51	2
52	6
53	5
54	2
55	3
56	2
57	1
58	1
59	3
60	1
61	3
62	6
63	3
64	1
65	2
66	5
67	1
68	5
69	1
70	1
71	2
72	2
73	1
74	2
75	2
76	4
77	2
78	1
79	1
80	2
81	4
82	7
83	3
84	1
85	3
86	3
87	1
88	1
89	3
90	5
91	3
92	9
93	1
94	3
95	2
96	2
97	1
98	8
99	1
100	1
101	2
102	1
103	3
104	3
105	1

cp's OEIS Frontend

A037039 Least k such that 4*n*k+1 is a prime.

Table of values

List of values

A037039 Least k such that 4nk+1 is a prime.

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	1
8	3
9	1
10	1
11	2
12	2
13	1
14	2
15	1
16	3
17	2
18	1
19	3
20	3
21	4
22	1
23	3
24	1
25	1
26	3
27	1
28	1
29	2
30	2
31	3
32	2
33	3
34	1
35	2
36	3
37	1
38	3
39	1
40	4
41	5
42	2
43	1
44	2
45	1
46	7
47	5
48	1
49	1
50	2
51	2
52	6
53	5
54	2
55	3
56	2
57	1
58	1
59	3
60	1
61	3
62	6
63	3
64	1
65	2
66	5
67	1
68	5
69	1
70	1
71	2
72	2
73	1
74	2
75	2
76	4
77	2
78	1
79	1
80	2
81	4
82	7
83	3
84	1
85	3
86	3
87	1
88	1
89	3
90	5
91	3
92	9
93	1
94	3
95	2
96	2
97	1
98	8
99	1
100	1
101	2
102	1
103	3
104	3
105	1