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.

A251803 Number of (3+1)X(n+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

Table of values

n a(n)
1 19269
2 724300
3 17195593
4 294088336
5 3934266515
6 43510308650
7 413630526506
8 3478117057808
9 26433809155056
10 184631083973492
11 1200862969509714
12 7350360178000790
13 42705102555064986
14 237181196199079904

List of values

[19269, 724300, 17195593, 294088336, 3934266515, 43510308650, 413630526506, 3478117057808, 26433809155056, 184631083973492, 1200862969509714, 7350360178000790, 42705102555064986, 237181196199079904]