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.

A231126 Number of (n+1) X (3+1) white-square subarrays of 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

Table of values

n a(n)
1 6
2 40
3 308
4 2260
5 16812
6 124644
7 924900
8 6862052
9 50913012
10 377747700
11 2802692276
12 20794524084
13 154284599124
14 1144711823796
15 8493168927828
16 63014915159220
17 467538037568404
18 3468890119531892
19 25737368287958996
20 190957944347003188

List of values

[6, 40, 308, 2260, 16812, 124644, 924900, 6862052, 50913012, 377747700, 2802692276, 20794524084, 154284599124, 1144711823796, 8493168927828, 63014915159220, 467538037568404, 3468890119531892, 25737368287958996, 190957944347003188]