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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.

A225829 Number of binary pattern classes in the (5,n)-rectangular grid: two patterns are in the same class if one of them can be obtained by a reflection or 180-degree rotation of the other.

Table of values

n a(n)
0 1
1 20
2 288
3 8640
4 263680
5 8407040
6 268517376
7 8590786560
8 274882625536
9 8796137062400
10 281475261923328
11 9007201737768960
12 288230393868451840
13 9223372185031147520
14 295147906296044322816
15 9444732974878980833280
16 302231454974575793668096
17 9671406557490978467348480

List of values

[1, 20, 288, 8640, 263680, 8407040, 268517376, 8590786560, 274882625536, 8796137062400, 281475261923328, 9007201737768960, 288230393868451840, 9223372185031147520, 295147906296044322816, 9444732974878980833280, 302231454974575793668096, 9671406557490978467348480]

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

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