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.

A208041 Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically.

Table of values

n a(n)
1 13
2 169
3 741
4 3249
5 21147
6 137641
7 766115
8 4264225
9 25232235
10 149303961
11 862184859
12 4978854721
13 29034369719
14 169314967441
15 983440982185
16 5712171700225
17 33232678181985
18 193343435230401
19 1124082152541891

List of values

[13, 169, 741, 3249, 21147, 137641, 766115, 4264225, 25232235, 149303961, 862184859, 4978854721, 29034369719, 169314967441, 983440982185, 5712171700225, 33232678181985, 193343435230401, 1124082152541891]

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

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