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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.

A188963 Number of nX2 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 1
2 9
3 265
4 8132
5 154564
6 2790864
7 55327556
8 1139362932
9 23084210737
10 461656617041
11 9241940662537
12 185683704600857
13 3732662042406464
14 74976134234530448
15 1505525933241030176
16 30234928280320748560

List of values

[1, 9, 265, 8132, 154564, 2790864, 55327556, 1139362932, 23084210737, 461656617041, 9241940662537, 185683704600857, 3732662042406464, 74976134234530448, 1505525933241030176, 30234928280320748560]

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

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