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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.

A251268 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

Table of values

n a(n)
1 11
2 26
3 35
4 57
5 114
6 108
7 120
8 313
9 480
10 337
11 247
12 772
13 1667
14 2058
15 1049
16 502
17 1775
18 4930
19 9109
20 8812
21 3268
22 1013
23 3894
24 13052
25 32636
26 49872
27 37772
28 10179
29 2036
30 8277
31 31936
32 100843
33 217634
34 273607
35 161906
36 31707
37 4083
38 17224
39 73805
40 279718
41 790734

List of values

[11, 26, 35, 57, 114, 108, 120, 313, 480, 337, 247, 772, 1667, 2058, 1049, 502, 1775, 4930, 9109, 8812, 3268, 1013, 3894, 13052, 32636, 49872, 37772, 10179, 2036, 8277, 31936, 100843, 217634, 273607, 161906, 31707, 4083, 17224, 73805, 279718, 790734]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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