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.

A046461 Numbers k such that concatenation of numbers from 1 to k is a semiprime.

Table of values

n a(n)
1 3
2 4
3 7
4 34
5 97

List of values

[3, 4, 7, 34, 97]