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.

A250953 Number of (n+1)X(5+1) 0..1 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

Table of values

n a(n)
1 2911
2 134456
3 6204344
4 286298344
5 13211127617
6 609622239024
7 28130774228952
8 1298083303266168
9 59899533694064023
10 2764039970645608136
11 127545516428291433088
12 5885536726506369363688
13 271585732913285543900561

List of values

[2911, 134456, 6204344, 286298344, 13211127617, 609622239024, 28130774228952, 1298083303266168, 59899533694064023, 2764039970645608136, 127545516428291433088, 5885536726506369363688, 271585732913285543900561]

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

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