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.

A221255 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.

Table of values

n a(n)
1 0
2 1
3 0
4 2
5 4
6 0
7 4
8 8
9 16
10 0
11 8
12 81
13 30
14 64
15 0
16 16
17 392
18 2116
19 112
20 256
21 0
22 32
23 2500
24 22268
25 58081
26 418
27 1024
28 0
29 64
30 14112
31 488601
32 1319409
33 1612900
34 1560
35 4096
36 0
37 128
38 83521
39 7356420
40 103489929
41 78633756
42 44903401
43 5822
44 16384
45 0
46 256
47 484128
48 132273001

List of values

[0, 1, 0, 2, 4, 0, 4, 8, 16, 0, 8, 81, 30, 64, 0, 16, 392, 2116, 112, 256, 0, 32, 2500, 22268, 58081, 418, 1024, 0, 64, 14112, 488601, 1319409, 1612900, 1560, 4096, 0, 128, 83521, 7356420, 103489929, 78633756, 44903401, 5822, 16384, 0, 256, 484128, 132273001]