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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.

A349507 a(n) is the denominator of n!^(2*n)/(n^n^2).

Table of values

n a(n)
1 1
2 1
3 27
4 256
5 30517578125
6 531441
7 378818692265664781682717625943
8 1208925819614629174706176
9 8727963568087712425891397479476727340041449
10 867361737988403547205962240695953369140625
11 12527829399838427440107579247354215251149392000034969484678615956504532008683916069945559954314411495091

List of values

[1, 1, 27, 256, 30517578125, 531441, 378818692265664781682717625943, 1208925819614629174706176, 8727963568087712425891397479476727340041449, 867361737988403547205962240695953369140625, 12527829399838427440107579247354215251149392000034969484678615956504532008683916069945559954314411495091]

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

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