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.

A057707 a(n) is the number of free 'polyominoes' on the (4.8.8) grid with n octagons and n squares.

Table of values

n a(n)
1 1
2 8
3 80
4 1296
5 22601
6 426305
7 8340302
8 167925635
9 3453618607

List of values

[1, 8, 80, 1296, 22601, 426305, 8340302, 167925635, 3453618607]