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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.

A262261 a(n) = Product_{k=0..n} binomial(4*k,k).

Table of values

n a(n)
0 1
1 4
2 112
3 24640
4 44844800
5 695273779200
6 93581069585203200
7 110803729631663996928000
8 1165466869384731418887782400000
9 109720873815210197693149787062272000000
10 93006053830822450607559730484293052399616000000

List of values

[1, 4, 112, 24640, 44844800, 695273779200, 93581069585203200, 110803729631663996928000, 1165466869384731418887782400000, 109720873815210197693149787062272000000, 93006053830822450607559730484293052399616000000]

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

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