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.

A250908 Number of (n+1)X(3+1) 0..2 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

Table of values

n a(n)
1 4909
2 297873
3 18077319
4 1096982379
5 66566704705
6 4039362762435
7 245114118899485
8 14873861407326111
9 902566310928490467
10 54768961329136851033
11 3323455667098397402917
12 201671846608424737679469

List of values

[4909, 297873, 18077319, 1096982379, 66566704705, 4039362762435, 245114118899485, 14873861407326111, 902566310928490467, 54768961329136851033, 3323455667098397402917, 201671846608424737679469]

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

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