A013598 - cp's OEIS frontend

A013598 a(n) = nextprime(3^n)-3^n.

n	a(n)
0	1
1	2
2	2
3	2
4	2
5	8
6	4
7	16
8	2
9	4
10	2
11	20
12	16
13	8
14	2
15	2
16	26
17	34
18	10
19	56
20	8
21	56
22	4
23	32
24	2
25	14
26	2
27	16
28	26
29	130
30	4
31	16
32	70
33	70
34	34
35	22
36	2
37	50
38	8
39	82
40	118
41	70
42	4
43	52
44	8
45	46
46	68
47	52
48	56
49	16
50	28
51	34
52	50
53	26
54	28
55	20
56	62
57	4
58	158
59	64
60	16
61	34
62	122
63	2
64	92
65	64
66	28
67	230
68	20

[1, 2, 2, 2, 2, 8, 4, 16, 2, 4, 2, 20, 16, 8, 2, 2, 26, 34, 10, 56, 8, 56, 4, 32, 2, 14, 2, 16, 26, 130, 4, 16, 70, 70, 34, 22, 2, 50, 8, 82, 118, 70, 4, 52, 8, 46, 68, 52, 56, 16, 28, 34, 50, 26, 28, 20, 62, 4, 158, 64, 16, 34, 122, 2, 92, 64, 28, 230, 20]

cp's OEIS Frontend

A013598 a(n) = nextprime(3^n)-3^n.

Table of values

List of values

n	a(n)
0	1
1	2
2	2
3	2
4	2
5	8
6	4
7	16
8	2
9	4
10	2
11	20
12	16
13	8
14	2
15	2
16	26
17	34
18	10
19	56
20	8
21	56
22	4
23	32
24	2
25	14
26	2
27	16
28	26
29	130
30	4
31	16
32	70
33	70
34	34
35	22
36	2
37	50
38	8
39	82
40	118
41	70
42	4
43	52
44	8
45	46
46	68
47	52
48	56
49	16
50	28
51	34
52	50
53	26
54	28
55	20
56	62
57	4
58	158
59	64
60	16
61	34
62	122
63	2
64	92
65	64
66	28
67	230
68	20

n	a(n)
0	1
1	2
2	2
3	2
4	2
5	8
6	4
7	16
8	2
9	4
10	2
11	20
12	16
13	8
14	2
15	2
16	26
17	34
18	10
19	56
20	8
21	56
22	4
23	32
24	2
25	14
26	2
27	16
28	26
29	130
30	4
31	16
32	70
33	70
34	34
35	22
36	2
37	50
38	8
39	82
40	118
41	70
42	4
43	52
44	8
45	46
46	68
47	52
48	56
49	16
50	28
51	34
52	50
53	26
54	28
55	20
56	62
57	4
58	158
59	64
60	16
61	34
62	122
63	2
64	92
65	64
66	28
67	230
68	20

n	a(n)
0	1
1	2
2	2
3	2
4	2
5	8
6	4
7	16
8	2
9	4
10	2
11	20
12	16
13	8
14	2
15	2
16	26
17	34
18	10
19	56
20	8
21	56
22	4
23	32
24	2
25	14
26	2
27	16
28	26
29	130
30	4
31	16
32	70
33	70
34	34
35	22
36	2
37	50
38	8
39	82
40	118
41	70
42	4
43	52
44	8
45	46
46	68
47	52
48	56
49	16
50	28
51	34
52	50
53	26
54	28
55	20
56	62
57	4
58	158
59	64
60	16
61	34
62	122
63	2
64	92
65	64
66	28
67	230
68	20