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.

A229637 T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 6
6 0
7 3
8 40
9 39
10 0
11 12
12 122
13 244
14 202
15 0
16 40
17 488
18 1109
19 1496
20 925
21 0
22 120
23 1608
24 6031
25 10227
26 8800
27 3924
28 0
29 336
30 5392
31 28448
32 77620
33 89331
34 50084
35 15795
36 0
37 896
38 17368
39 136778
40 535671
41 960325
42 747299
43 277996
44 61182
45 0
46 2304
47 55232
48 633328

List of values

[0, 0, 0, 1, 6, 0, 3, 40, 39, 0, 12, 122, 244, 202, 0, 40, 488, 1109, 1496, 925, 0, 120, 1608, 6031, 10227, 8800, 3924, 0, 336, 5392, 28448, 77620, 89331, 50084, 15795, 0, 896, 17368, 136778, 535671, 960325, 747299, 277996, 61182, 0, 2304, 55232, 633328]