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.

A196509 Largest palindrome formed by using n single-digit numbers and the operators +, -, * and / where concatenation is not allowed.

Table of values

n a(n)
1 9
2 11
3 343
4 747
5 6556
6 65856
7 405504
8 4251524
9 8847488

List of values

[9, 11, 343, 747, 6556, 65856, 405504, 4251524, 8847488]