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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.

A181992 n-alternating permutations of length n^2.

Table of values

n a(n)
0 1
1 1
2 5
3 1513
4 60376809
5 613498040952501
6 2655748106132754540814283
7 7350748555338515554166266981278924209
8 18155845241010181420704703186769135339279915667193169
9 53121946985233865823079732996510797894348260342024814486694637630897821

List of values

[1, 1, 5, 1513, 60376809, 613498040952501, 2655748106132754540814283, 7350748555338515554166266981278924209, 18155845241010181420704703186769135339279915667193169, 53121946985233865823079732996510797894348260342024814486694637630897821]

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

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