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.

A239541 Number of (7+1)X(n+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 405
2 7790
3 984150
4 71388971
5 5988724293
6 482858009716
7 39351464058085
8 3197707959464813
9 260051519640219195
10 21143995321557570468
11 1719253480434235036170
12 139793164967480337703364

List of values

[405, 7790, 984150, 71388971, 5988724293, 482858009716, 39351464058085, 3197707959464813, 260051519640219195, 21143995321557570468, 1719253480434235036170, 139793164967480337703364]

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

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