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.

A264875 Number of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change 0,1 0,-1 -2,0 or 1,1.

Table of values

n a(n)
1 1
2 7
3 65
4 572
5 3613
6 19372
7 103585
8 629654
9 3930725
10 23940621
11 142473267
12 842856777
13 5016418697
14 30065544899
15 180338347093
16 1079186020543
17 6447895527277
18 38523254178658
19 230312221421636
20 1377482024204996

List of values

[1, 7, 65, 572, 3613, 19372, 103585, 629654, 3930725, 23940621, 142473267, 842856777, 5016418697, 30065544899, 180338347093, 1079186020543, 6447895527277, 38523254178658, 230312221421636, 1377482024204996]