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.

A229689 Number of defective 3-colorings of an n X 3 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 1
2 43
3 626
4 6732
5 62856
6 539568
7 4377888
8 34105536
9 257634432
10 1899645696
11 13735899648
12 97733495808
13 686049232896
14 4760622968832
15 32708331380736
16 222789318524928
17 1506002505596928
18 10111798278291456
19 67486591206162432

List of values

[1, 43, 626, 6732, 62856, 539568, 4377888, 34105536, 257634432, 1899645696, 13735899648, 97733495808, 686049232896, 4760622968832, 32708331380736, 222789318524928, 1506002505596928, 10111798278291456, 67486591206162432]