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.

A229407 Number of nX3 0..3 arrays avoiding 11 horizontally, 22 vertically, 33 antidiagonally and 00 diagonally.

Table of values

n a(n)
1 57
2 1756
3 53538
4 1629298
5 49788258
6 1519840402
7 46408035676
8 1416912709750
9 43262165219520
10 1320895600914374
11 40330198228444030
12 1231378827675817778
13 37596999339380782420
14 1147927946466853457658
15 35049037211821475282406

List of values

[57, 1756, 53538, 1629298, 49788258, 1519840402, 46408035676, 1416912709750, 43262165219520, 1320895600914374, 40330198228444030, 1231378827675817778, 37596999339380782420, 1147927946466853457658, 35049037211821475282406]