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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.

A253397 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.

Table of values

n a(n)
1 16
2 44
3 44
4 96
5 102
6 96
7 180
8 143
9 143
10 180
11 304
12 197
13 174
14 197
15 304
16 476
17 250
18 246
19 246
20 250
21 476
22 704
23 320
24 316
25 346
26 316
27 320
28 704
29 996
30 391
31 419
32 465
33 465
34 419
35 391
36 996
37 1360
38 477
39 520
40 632
41 666
42 632
43 520
44 477
45 1360
46 1804
47 564
48 651
49 823
50 932
51 932
52 823
53 651

List of values

[16, 44, 44, 96, 102, 96, 180, 143, 143, 180, 304, 197, 174, 197, 304, 476, 250, 246, 246, 250, 476, 704, 320, 316, 346, 316, 320, 704, 996, 391, 419, 465, 465, 419, 391, 996, 1360, 477, 520, 632, 666, 632, 520, 477, 1360, 1804, 564, 651, 823, 932, 932, 823, 651]