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.

A229688 Number of defective 3-colorings of an n X n 0..2 array connected horizontally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.

Table of values

n a(n)
1 0
2 3
3 626
4 80757
5 17724789
6 7551515197
7 6749642728251
8 13137498602431137
9 56959853494513069323
10 558086310754870843057446
11 12478933741531750768879884477
12 641265228914623466199892311965220

List of values

[0, 3, 626, 80757, 17724789, 7551515197, 6749642728251, 13137498602431137, 56959853494513069323, 558086310754870843057446, 12478933741531750768879884477, 641265228914623466199892311965220]