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.

A264342 Number of (2+1)X(n+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 0,1 or 1,2.

Table of values

n a(n)
1 8
2 55
3 490
4 3567
5 28925
6 223356
7 1759250
8 13750304
9 107777857
10 843913133
11 6610346674
12 51772001513
13 405494413096
14 3175909815583
15 24874462255642
16 194822212724279
17 1525890963999701
18 11951115491689468
19 93603785927597586

List of values

[8, 55, 490, 3567, 28925, 223356, 1759250, 13750304, 107777857, 843913133, 6610346674, 51772001513, 405494413096, 3175909815583, 24874462255642, 194822212724279, 1525890963999701, 11951115491689468, 93603785927597586]