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.

A267982 a(n) = 4*n*Catalan(n)^2.

Table of values

n a(n)
0 0
1 4
2 32
3 300
4 3136
5 35280
6 418176
7 5153148
8 65436800
9 851005584
10 11284224640
11 152054927024
12 2076911622912
13 28698821320000
14 400547241561600
15 5639401174441500
16 80010548981049600
17 1142928467041798800
18 16425988397113680000
19 237364657887402183600

List of values

[0, 4, 32, 300, 3136, 35280, 418176, 5153148, 65436800, 851005584, 11284224640, 152054927024, 2076911622912, 28698821320000, 400547241561600, 5639401174441500, 80010548981049600, 1142928467041798800, 16425988397113680000, 237364657887402183600]

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

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