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.

A251246 Number of (n+1)X(5+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.

Table of values

n a(n)
1 351891
2 173028393
3 85032883789
4 41786532918513
5 20534495636679387
6 10090935221593972941
7 4958824382557190011939
8 2436834428903758977300429
9 1197493907250619474216993239
10 588464952033721324797933672285

List of values

[351891, 173028393, 85032883789, 41786532918513, 20534495636679387, 10090935221593972941, 4958824382557190011939, 2436834428903758977300429, 1197493907250619474216993239, 588464952033721324797933672285]

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

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