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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.

A268505 a(n) = Product_{k=0..n} (4*k)!.

Table of values

n a(n)
0 1
1 24
2 967680
3 463520268288000
4 9698137182219213471744000000
5 23594617426193665303453830729600860160000000000
6 14639242671589099207353038379393488170313478620292159897600000000000000

List of values

[1, 24, 967680, 463520268288000, 9698137182219213471744000000, 23594617426193665303453830729600860160000000000, 14639242671589099207353038379393488170313478620292159897600000000000000]

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

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