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.

A056986 Number of permutations on {1,...,n} containing any given pattern alpha in the symmetric group S_3.

Table of values

n a(n)
1 0
2 0
3 1
4 10
5 78
6 588
7 4611
8 38890
9 358018
10 3612004
11 39858014
12 478793588
13 6226277900
14 87175616760
15 1307664673155
16 20922754530330
17 355687298451210
18 6402373228089300
19 121645098641568810
20 2432902001612519580
21 51090942147243172980
22 1124000727686125116360

List of values

[0, 0, 1, 10, 78, 588, 4611, 38890, 358018, 3612004, 39858014, 478793588, 6226277900, 87175616760, 1307664673155, 20922754530330, 355687298451210, 6402373228089300, 121645098641568810, 2432902001612519580, 51090942147243172980, 1124000727686125116360]

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

Content is available under The OEIS End-User License Agreement.