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.

A188953 Number of nX2 array permutations with each element moved no more than a city block distance of two.

Table of values

n a(n)
1 2
2 24
3 362
4 3969
5 45288
6 532224
7 6187928
8 71851073
9 835579642
10 9715691800
11 112952196626
12 1313218423169
13 15268015911568
14 177510903321088
15 2063800528041456
16 23994446285179649
17 278967524405993266

List of values

[2, 24, 362, 3969, 45288, 532224, 6187928, 71851073, 835579642, 9715691800, 112952196626, 1313218423169, 15268015911568, 177510903321088, 2063800528041456, 23994446285179649, 278967524405993266]

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

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