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.

A277762 Number of n X 3 0..2 arrays with every element equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2.

Table of values

n a(n)
1 0
2 4
3 17
4 330
5 3666
6 46289
7 560809
8 6883464
9 84161576
10 1030163755
11 12605295745
12 154256946272
13 1887655962034
14 23099627259711
15 282674025688925
16 3459132503499606
17 42330011144976582
18 517999809756567289

List of values

[0, 4, 17, 330, 3666, 46289, 560809, 6883464, 84161576, 1030163755, 12605295745, 154256946272, 1887655962034, 23099627259711, 282674025688925, 3459132503499606, 42330011144976582, 517999809756567289]