A374577 - cp's OEIS frontend

A374577 Pierpont primes are primes of the form 2^t*3^u + 1; this sequence gives the t's in order.

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	3
10	5
11	2
12	1
13	6
14	8
15	4
16	1
17	6
18	8
19	7
20	4
21	1
22	5
23	2
24	7
25	4
26	7
27	12
28	3
29	11
30	1
31	3
32	16
33	6
34	14
35	5
36	12
37	3
38	5
39	10
40	18
41	7
42	12
43	17
44	11
45	16
46	13
47	15
48	8
49	16
50	4
51	6
52	19
53	2
54	20
55	2
56	18
57	15
58	1
59	6
60	22
61	11
62	21
63	1
64	13
65	12
66	11
67	26
68	25
69	30
70	19
71	24
72	20
73	27
74	16
75	23
76	11

[0, 1, 2, 1, 2, 4, 1, 2, 3, 5, 2, 1, 6, 8, 4, 1, 6, 8, 7, 4, 1, 5, 2, 7, 4, 7, 12, 3, 11, 1, 3, 16, 6, 14, 5, 12, 3, 5, 10, 18, 7, 12, 17, 11, 16, 13, 15, 8, 16, 4, 6, 19, 2, 20, 2, 18, 15, 1, 6, 22, 11, 21, 1, 13, 12, 11, 26, 25, 30, 19, 24, 20, 27, 16, 23, 11]

cp's OEIS Frontend

A374577 Pierpont primes are primes of the form 2^t*3^u + 1; this sequence gives the t's in order.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	3
10	5
11	2
12	1
13	6
14	8
15	4
16	1
17	6
18	8
19	7
20	4
21	1
22	5
23	2
24	7
25	4
26	7
27	12
28	3
29	11
30	1
31	3
32	16
33	6
34	14
35	5
36	12
37	3
38	5
39	10
40	18
41	7
42	12
43	17
44	11
45	16
46	13
47	15
48	8
49	16
50	4
51	6
52	19
53	2
54	20
55	2
56	18
57	15
58	1
59	6
60	22
61	11
62	21
63	1
64	13
65	12
66	11
67	26
68	25
69	30
70	19
71	24
72	20
73	27
74	16
75	23
76	11

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	3
10	5
11	2
12	1
13	6
14	8
15	4
16	1
17	6
18	8
19	7
20	4
21	1
22	5
23	2
24	7
25	4
26	7
27	12
28	3
29	11
30	1
31	3
32	16
33	6
34	14
35	5
36	12
37	3
38	5
39	10
40	18
41	7
42	12
43	17
44	11
45	16
46	13
47	15
48	8
49	16
50	4
51	6
52	19
53	2
54	20
55	2
56	18
57	15
58	1
59	6
60	22
61	11
62	21
63	1
64	13
65	12
66	11
67	26
68	25
69	30
70	19
71	24
72	20
73	27
74	16
75	23
76	11

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	3
10	5
11	2
12	1
13	6
14	8
15	4
16	1
17	6
18	8
19	7
20	4
21	1
22	5
23	2
24	7
25	4
26	7
27	12
28	3
29	11
30	1
31	3
32	16
33	6
34	14
35	5
36	12
37	3
38	5
39	10
40	18
41	7
42	12
43	17
44	11
45	16
46	13
47	15
48	8
49	16
50	4
51	6
52	19
53	2
54	20
55	2
56	18
57	15
58	1
59	6
60	22
61	11
62	21
63	1
64	13
65	12
66	11
67	26
68	25
69	30
70	19
71	24
72	20
73	27
74	16
75	23
76	11