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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.

A259328 Ceiling of ((2^n)!)/(2^(n*(n-1))*Product((2^i-1)^2,i=1..n)).

Table of values

n a(n)
1 2
2 1
3 2
4 51480
5 2631645209144487019355
6 312242081385925594286511113381220856098317029402428309504000000000000

List of values

[2, 1, 2, 51480, 2631645209144487019355, 312242081385925594286511113381220856098317029402428309504000000000000]

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