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.

A251093 Number of (n+1)X(n+1) 0..1 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element.

Table of values

n a(n)
1 13
2 212
3 9597
4 1175519
5 391088995
6 353489877714
7 867470863709067
8 5781820357157777986
9 104649732973693543280042
10 5143991426222399264506760205
11 686661619658213553959701988139993

List of values

[13, 212, 9597, 1175519, 391088995, 353489877714, 867470863709067, 5781820357157777986, 104649732973693543280042, 5143991426222399264506760205, 686661619658213553959701988139993]

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

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