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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.

A268196 a(n) = Product_{k=0..n} binomial(3*k,k).

Table of values

n a(n)
0 1
1 3
2 45
3 3780
4 1871100
5 5618913300
6 104309506501200
7 12129109415959536000
8 8920608231265175901456000
9 41809329673499408044341517200000
10 1256161937180234817183361549396758000000
11 243113461110708695347467432844366521953760000000

List of values

[1, 3, 45, 3780, 1871100, 5618913300, 104309506501200, 12129109415959536000, 8920608231265175901456000, 41809329673499408044341517200000, 1256161937180234817183361549396758000000, 243113461110708695347467432844366521953760000000]

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

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