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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.

A264377 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change 2,-2 -1,0 -1,2 1,0 or 0,-1.

Table of values

n a(n)
1 15
2 121
3 14329
4 711068
5 45132986
6 2546661201
7 149731056598
8 8620411258657
9 499872831041401
10 28871184063697655
11 1669447411395132846
12 96462826329498703173
13 5574683427373667949652
14 322122388885074528092794

List of values

[15, 121, 14329, 711068, 45132986, 2546661201, 149731056598, 8620411258657, 499872831041401, 28871184063697655, 1669447411395132846, 96462826329498703173, 5574683427373667949652, 322122388885074528092794]

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

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