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.

A239538 Number of (4+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 13
2 68
3 1014
4 11108
5 131988
6 1533792
7 17931608
8 209295248
9 2443954640
10 28534764096
11 333172950560
12 3890104752256
13 45420709489664
14 530330059963392
15 6192109859155200
16 72298791884174336
17 844157402919585408

List of values

[13, 68, 1014, 11108, 131988, 1533792, 17931608, 209295248, 2443954640, 28534764096, 333172950560, 3890104752256, 45420709489664, 530330059963392, 6192109859155200, 72298791884174336, 844157402919585408]