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.

A250297 Number n such that the n-th term of "concatenate next digit at right hand end (where the next digit after 9 is again 1)" is a semiprime.

Table of values

n a(n)
1 3
2 4
3 7
4 13
5 25
6 34
7 37
8 97

List of values

[3, 4, 7, 13, 25, 34, 37, 97]