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.

A186069 a(n) is the smallest prefix such that the numbers with k digits "3" appended are primes for k = 1..n.

Table of values

n a(n)
1 1
2 2
3 2
4 2
5 2177
6 16109
7 1100318
8 1315351
9 74810500
10 1130720467
11 103273582897
12 1587865798465

List of values

[1, 2, 2, 2, 2177, 16109, 1100318, 1315351, 74810500, 1130720467, 103273582897, 1587865798465]