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.

A241116 Number of nX4 0..3 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..3 introduced in row major order.

Table of values

n a(n)
1 15
2 2614
3 587555
4 134229632
5 30679522712
6 7012241396116
7 1602748583683541
8 366331237082570675
9 83730272300093086129
10 19137757826895828304001
11 4374209764040662469308200
12 999788545392696494568265298

List of values

[15, 2614, 587555, 134229632, 30679522712, 7012241396116, 1602748583683541, 366331237082570675, 83730272300093086129, 19137757826895828304001, 4374209764040662469308200, 999788545392696494568265298]