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.

A208258 T(n,k)=Number of nXk 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward neighbors.

Table of values

n a(n)
1 1
2 2
3 2
4 5
5 12
6 5
7 14
8 96
9 96
10 14
11 41
12 768
13 2040
14 768
15 41
16 122
17 6144
18 43344
19 43344
20 6144
21 122
22 365
23 49152
24 920928
25 2445264
26 920928
27 49152
28 365
29 1094
30 393216
31 19566912
32 137947632
33 137947632
34 19566912
35 393216
36 1094
37 3281
38 3145728
39 415737216

List of values

[1, 2, 2, 5, 12, 5, 14, 96, 96, 14, 41, 768, 2040, 768, 41, 122, 6144, 43344, 43344, 6144, 122, 365, 49152, 920928, 2445264, 920928, 49152, 365, 1094, 393216, 19566912, 137947632, 137947632, 19566912, 393216, 1094, 3281, 3145728, 415737216]