cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A097954 Numbers k such that 7*10^k + 9 is prime.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 11
6 12
7 13
8 35
9 46
10 57
11 128
12 156
13 263
14 353
15 396
16 429
17 783
18 982
19 1058
20 1563
21 1695
22 1816
23 1937
24 4236
25 4431
26 6858
27 9898
28 13145
29 16646
30 20891
31 63351
32 105296
33 113693
34 121144
35 163780
36 234915
37 284751

List of values

[1, 2, 4, 6, 11, 12, 13, 35, 46, 57, 128, 156, 263, 353, 396, 429, 783, 982, 1058, 1563, 1695, 1816, 1937, 4236, 4431, 6858, 9898, 13145, 16646, 20891, 63351, 105296, 113693, 121144, 163780, 234915, 284751]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.