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.

A221072 T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their king-move neighbors in a random 0..3 nXk array.

Table of values

n a(n)
1 2
2 2
3 2
4 8
5 8
6 8
7 16
8 20
9 20
10 16
11 24
12 56
13 512
14 56
15 24
16 64
17 168
18 4096
19 4096
20 168
21 64
22 128
23 476
24 26976
25 65536
26 26976
27 476
28 128
29 232
30 1364
31 262144
32 829184
33 829184
34 262144
35 1364
36 232
37 512
38 3952
39 2097152
40 16777216
41 17530176
42 16777216
43 2097152
44 3952
45 512
46 1024
47 11360

List of values

[2, 2, 2, 8, 8, 8, 16, 20, 20, 16, 24, 56, 512, 56, 24, 64, 168, 4096, 4096, 168, 64, 128, 476, 26976, 65536, 26976, 476, 128, 232, 1364, 262144, 829184, 829184, 262144, 1364, 232, 512, 3952, 2097152, 16777216, 17530176, 16777216, 2097152, 3952, 512, 1024, 11360]