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.

A208637 T(n,k)=Number of nXk 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

n a(n)
1 1
2 2
3 2
4 4
5 5
6 4
7 8
8 11
9 13
10 8
11 16
12 23
13 32
14 34
15 16
16 32
17 47
18 71
19 95
20 89
21 32
22 64
23 95
24 150
25 225
26 284
27 233
28 64
29 128
30 191
31 309
32 494
33 722
34 851
35 610
36 128
37 256
38 383
39 628
40 1042
41 1652
42 2331
43 2552
44 1597
45 256
46 512
47 767
48 1267
49 2149
50 3577
51 5572
52 7548
53 7655
54 4181
55 512
56 1024
57 1535

List of values

[1, 2, 2, 4, 5, 4, 8, 11, 13, 8, 16, 23, 32, 34, 16, 32, 47, 71, 95, 89, 32, 64, 95, 150, 225, 284, 233, 64, 128, 191, 309, 494, 722, 851, 610, 128, 256, 383, 628, 1042, 1652, 2331, 2552, 1597, 256, 512, 767, 1267, 2149, 3577, 5572, 7548, 7655, 4181, 512, 1024, 1535]