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.

A209095 Number of n X 3 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 76
3 1326
4 23248
5 407832
6 7154944
7 125526240
8 2202232576
9 38635976064
10 677829707776
11 11891846929920
12 208630607073280
13 3660216151873536
14 64214845877125120
15 1126585496573239296
16 19764820171301257216

List of values

[5, 76, 1326, 23248, 407832, 7154944, 125526240, 2202232576, 38635976064, 677829707776, 11891846929920, 208630607073280, 3660216151873536, 64214845877125120, 1126585496573239296, 19764820171301257216]