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.

A198712 Number of nX5 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor.

Table of values

n a(n)
1 14
2 1201
3 107042
4 9548295
5 851787199
6 75987485516
7 6778819400772
8 604736581320925
9 53948385378521909
10 4812720805166620356
11 429341516830025751982
12 38301440209010857426775
13 3416861087749979581617789

List of values

[14, 1201, 107042, 9548295, 851787199, 75987485516, 6778819400772, 604736581320925, 53948385378521909, 4812720805166620356, 429341516830025751982, 38301440209010857426775, 3416861087749979581617789]

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

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