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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.

A189350 Number of nX4 array permutations with each element moving one space diagonally, horizontally or vertically.

Table of values

n a(n)
1 1
2 45
3 557
4 12592
5 237297
6 4791913
7 94635005
8 1883785285
9 37399042560
10 743166198493
11 14763119513829
12 293302192368977
13 5826899299462793
14 115761639593312944
15 2299800733947890517
16 45689485687194056453

List of values

[1, 45, 557, 12592, 237297, 4791913, 94635005, 1883785285, 37399042560, 743166198493, 14763119513829, 293302192368977, 5826899299462793, 115761639593312944, 2299800733947890517, 45689485687194056453]

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

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