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.

A251273 Number of (6+1)X(n+1) 0..1 arrays with no 2X2 subblock having x11-x00 less than x10-x01.

Table of values

n a(n)
1 3268
2 37772
3 273607
4 1457326
5 6247708
6 22806904
7 73607411
8 215673388
9 585010044
10 1491014836
11 3612638417
12 8399798586
13 18886662616
14 41329088816
15 88489078029
16 186209112216
17 386557846820
18 794103892572
19 1618422517619
20 3279033220486

List of values

[3268, 37772, 273607, 1457326, 6247708, 22806904, 73607411, 215673388, 585010044, 1491014836, 3612638417, 8399798586, 18886662616, 41329088816, 88489078029, 186209112216, 386557846820, 794103892572, 1618422517619, 3279033220486]

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

Content is available under The OEIS End-User License Agreement.