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.

A202739 Number of n X 5 0..1 arrays with row sums equal and column sums unequal to adjacent columns.

Table of values

n a(n)
1 2
2 54
3 638
4 6870
5 75302
6 827502
7 8870150
8 93402390
9 969837470
10 10133577294
11 104168885570
12 1073411553030
13 11008021249370
14 112437630047286
15 1151811769082618
16 11687452535796630
17 118872499759443950

List of values

[2, 54, 638, 6870, 75302, 827502, 8870150, 93402390, 969837470, 10133577294, 104168885570, 1073411553030, 11008021249370, 112437630047286, 1151811769082618, 11687452535796630, 118872499759443950]

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

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