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.

A133262 Number of two-dimensional simple permutations.

Table of values

n a(n)
1 1
2 4
3 8
4 172
5 5204
6 222716
7 12509188
8 889421564
9 78097622276
10 8312906703868
11 1056520142488580
12 158263730949406716
13 27626236450406776836
14 5563092167972597137404
15 1280742543230231763615748
16 334405228960123174787678204
17 98317121153947856929753989124
18 32339023133437156084762282819580
19 11831483864832785151824395066146820
20 4789379698138059405310741712024371196

List of values

[1, 4, 8, 172, 5204, 222716, 12509188, 889421564, 78097622276, 8312906703868, 1056520142488580, 158263730949406716, 27626236450406776836, 5563092167972597137404, 1280742543230231763615748, 334405228960123174787678204, 98317121153947856929753989124, 32339023133437156084762282819580, 11831483864832785151824395066146820, 4789379698138059405310741712024371196]

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

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