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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.

A188964 Number of nX3 array permutations with each element moved and moved by a city block distance of no more than three.

Table of values

n a(n)
1 2
2 265
3 78976
4 22666641
5 4064659324
6 741295637637
7 144279772457456
8 28624027037417040
9 5598968416725014336
10 1090382503789570607376
11 212622119350607875451536
12 41520188783110631009991949

List of values

[2, 265, 78976, 22666641, 4064659324, 741295637637, 144279772457456, 28624027037417040, 5598968416725014336, 1090382503789570607376, 212622119350607875451536, 41520188783110631009991949]

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

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