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.

A052714 a(n) = 2^(n-1) * n! * Catalan(n-1) for n > 0 with a(0) = 0.

Table of values

n a(n)
0 0
1 1
2 4
3 48
4 960
5 26880
6 967680
7 42577920
8 2214051840
9 132843110400
10 9033331507200
11 686533194547200
12 57668788341964800
13 5305528527460761600
14 530552852746076160000
15 57299708096576225280000
16 6646766139202842132480000
17 824199001261152424427520000

List of values

[0, 1, 4, 48, 960, 26880, 967680, 42577920, 2214051840, 132843110400, 9033331507200, 686533194547200, 57668788341964800, 5305528527460761600, 530552852746076160000, 57299708096576225280000, 6646766139202842132480000, 824199001261152424427520000]

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

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