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.

A197534 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4.

Table of values

n a(n)
1 9
2 73
3 868
4 9373
5 107655
6 1220630
7 14056707
8 162042137
9 1874230689
10 21698542215
11 251403042154
12 2913819348602
13 33779087426950
14 391635814747885
15 4540933400612193
16 52653016886940873
17 610534294176601038

List of values

[9, 73, 868, 9373, 107655, 1220630, 14056707, 162042137, 1874230689, 21698542215, 251403042154, 2913819348602, 33779087426950, 391635814747885, 4540933400612193, 52653016886940873, 610534294176601038]

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

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