A270831 - cp's OEIS frontend

A270831 Numbers k such that (7*10^k + 71)/3 is prime.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	23
8	29
9	37
10	39
11	40
12	89
13	115
14	189
15	227
16	253
17	301
18	449
19	533
20	607
21	969
22	1036
23	1207
24	1407
25	1701
26	3493
27	7147
28	11342
29	21638
30	22327
31	25575
32	25648
33	34079
34	39974
35	47719
36	49913
37	74729
38	100737
39	103531
40	168067

[1, 2, 3, 4, 5, 7, 23, 29, 37, 39, 40, 89, 115, 189, 227, 253, 301, 449, 533, 607, 969, 1036, 1207, 1407, 1701, 3493, 7147, 11342, 21638, 22327, 25575, 25648, 34079, 39974, 47719, 49913, 74729, 100737, 103531, 168067]

cp's OEIS Frontend

A270831 Numbers k such that (7*10^k + 71)/3 is prime.

Table of values

List of values