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.

A209102 Number of 3 X n 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

n a(n)
1 5
2 82
3 1326
4 20928
5 329064
6 5171088
7 81254376
8 1276752432
9 20061624144
10 315228486048
11 4953188212416
12 77829494407872
13 1222935603647424
14 19215999064449408
15 301941180717342336
16 4744404717684160512

List of values

[5, 82, 1326, 20928, 329064, 5171088, 81254376, 1276752432, 20061624144, 315228486048, 4953188212416, 77829494407872, 1222935603647424, 19215999064449408, 301941180717342336, 4744404717684160512]