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.

A207738 Number of nX5 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.

Table of values

n a(n)
1 15
2 225
3 1425
4 10535
5 86355
6 733363
7 6349893
8 55343835
9 484078805
10 4239251331
11 37149155225
12 325617022405
13 2854427890525
14 25023592056775
15 219376652808375
16 1923245408892489
17 16860907224450661
18 147818180556775365

List of values

[15, 225, 1425, 10535, 86355, 733363, 6349893, 55343835, 484078805, 4239251331, 37149155225, 325617022405, 2854427890525, 25023592056775, 219376652808375, 1923245408892489, 16860907224450661, 147818180556775365]

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

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