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.

A189654 Number of 6Xn array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.

Table of values

n a(n)
1 1
2 1681
3 144353
4 64890337
5 16718653553
6 5760755884032
7 1778231752192145
8 579697460209171993
9 184886869974436661041
10 59593521044870694533545
11 19125202990272640992094705
12 6150485955232431794501210601

List of values

[1, 1681, 144353, 64890337, 16718653553, 5760755884032, 1778231752192145, 579697460209171993, 184886869974436661041, 59593521044870694533545, 19125202990272640992094705, 6150485955232431794501210601]

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

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