A257567 - cp's OEIS frontend

A257567 a(n) is the largest exponent k such that 3^k divides (prime(n)^2 + 2).

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

[1, 0, 3, 1, 1, 2, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1, 4, 1, 2, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 3, 1, 2, 1, 2, 2, 1, 3, 1, 3, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 2, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 1, 1, 2, 2, 1, 1, 1, 1, 3, 1, 4, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 2]

cp's OEIS Frontend

A257567 a(n) is the largest exponent k such that 3^k divides (prime(n)^2 + 2).

Table of values

List of values

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

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

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