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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.

A264143 Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 1,-2 or 1,1.

Table of values

n a(n)
1 8
2 125
3 1440
4 15488
5 168948
6 1903336
7 20768650
8 228712964
9 2514024565
10 27630491593
11 304037924437
12 3343529124864
13 36775469678400
14 404510148892477
15 4449339039778765
16 48939316077898664
17 538295657554650689

List of values

[8, 125, 1440, 15488, 168948, 1903336, 20768650, 228712964, 2514024565, 27630491593, 304037924437, 3343529124864, 36775469678400, 404510148892477, 4449339039778765, 48939316077898664, 538295657554650689]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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