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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.

A205467 Number of (n+1) X (n+1) 0..2 arrays with every 2 X 2 subblock having the same number of equal edges, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 14
2 263
3 14639
4 2368164
5 1002405121
6 1094476686239
7 3037575583505983
8 21477571401148556382
9 385928233193168681488351

List of values

[14, 263, 14639, 2368164, 1002405121, 1094476686239, 3037575583505983, 21477571401148556382, 385928233193168681488351]

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

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