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.

A222827 Number of nX4 0..3 arrays with no more than floor(nX4/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Table of values

n a(n)
1 11
2 1154
3 163059
4 23664739
5 3489313607
6 520160675223
7 78214529020708
8 11843031775865125
9 1803481044258862295
10 275936349234703904616
11 42386246052840276405669
12 6532812606151325343712993

List of values

[11, 1154, 163059, 23664739, 3489313607, 520160675223, 78214529020708, 11843031775865125, 1803481044258862295, 275936349234703904616, 42386246052840276405669, 6532812606151325343712993]