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.

A208196 Number of n X 3 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than two of its immediate leftward or upward or left-upward diagonal neighbors.

Table of values

n a(n)
1 5
2 178
3 10366
4 639701
5 39725054
6 2468504665
7 153402542384
8 9533100532733
9 592428713557570
10 36816123505610549
11 2287915709208554132
12 142181136908012254369
13 8835760693778126853518
14 549093000211986917072609

List of values

[5, 178, 10366, 639701, 39725054, 2468504665, 153402542384, 9533100532733, 592428713557570, 36816123505610549, 2287915709208554132, 142181136908012254369, 8835760693778126853518, 549093000211986917072609]