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.

A189455 Number of 7Xn array permutations with each element moving zero or one space horizontally or diagonally.

Table of values

n a(n)
1 1
2 610
3 50000
4 9712873
5 1467726607
6 248187289625
7 40668908306516
8 6765736745152657
9 1121551510151218844
10 186316582712584278456
11 30941586267382205903880
12 5140131519113981931817620

List of values

[1, 610, 50000, 9712873, 1467726607, 248187289625, 40668908306516, 6765736745152657, 1121551510151218844, 186316582712584278456, 30941586267382205903880, 5140131519113981931817620]

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

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