A228037 - cp's OEIS frontend

A228037 Odd-indexed terms of Agoh's congruence A046094: a(n) is conjectured to be 1 iff 2n+1 is prime.

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

[0, 1, 1, 1, 3, 1, 1, 5, 1, 1, 7, 1, 5, 9, 1, 1, 11, 0, 1, 13, 1, 1, 24, 1, 7, 17, 1, 0, 19, 1, 1, 21, 13, 1, 23, 1, 1, 25, 0, 1, 27, 1, 17, 29, 1, 13, 31, 0, 1, 33, 1, 1, 56, 1, 1, 37, 1, 0, 39, 0, 11, 41, 25, 1, 43, 1, 19, 45, 1, 1, 47, 0, 29, 49, 1, 1, 51, 0, 1, 53, 0, 1, 88, 1, 13, 57, 1, 25, 59, 1, 1, 61, 37, 0, 63, 1, 1, 65, 1]

cp's OEIS Frontend

A228037 Odd-indexed terms of Agoh's congruence A046094: a(n) is conjectured to be 1 iff 2n+1 is prime.

Table of values

List of values

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

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

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