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.

A235674 Number of (n+1)X(3+1) 0..1 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.

Table of values

n a(n)
1 208
2 2456
3 28584
4 330840
5 3824528
6 44196144
7 510685176
8 5900818062
9 68181837738
10 787815537064
11 9102909355490
12 105180650740834
13 1215322331681740
14 14042586259073748
15 162256730906114932
16 1874814669334245592

List of values

[208, 2456, 28584, 330840, 3824528, 44196144, 510685176, 5900818062, 68181837738, 787815537064, 9102909355490, 105180650740834, 1215322331681740, 14042586259073748, 162256730906114932, 1874814669334245592]

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

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