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.

A276846 Numbers k such that (4*10^k + 143) / 3 is prime.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 7
6 9
7 15
8 21
9 22
10 44
11 49
12 53
13 63
14 127
15 145
16 393
17 856
18 1006
19 1883
20 2263
21 5684
22 13324
23 14291
24 27435
25 38897
26 114076

List of values

[1, 2, 3, 4, 7, 9, 15, 21, 22, 44, 49, 53, 63, 127, 145, 393, 856, 1006, 1883, 2263, 5684, 13324, 14291, 27435, 38897, 114076]