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.

A229589 Number of defective 3-colorings of a 4 X n 0..2 array connected horizontally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.

Table of values

n a(n)
1 0
2 224
3 2160
4 19764
5 167364
6 1375152
7 11035044
8 87040260
9 677327004
10 5213798784
11 39777273072
12 301217858676
13 2266655495148
14 16964398022220
15 126372108661164
16 937513290523896
17 6929886363153768
18 51058923535878660
19 375112065125492964

List of values

[0, 224, 2160, 19764, 167364, 1375152, 11035044, 87040260, 677327004, 5213798784, 39777273072, 301217858676, 2266655495148, 16964398022220, 126372108661164, 937513290523896, 6929886363153768, 51058923535878660, 375112065125492964]