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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.

A369395 AGM transform of the even positive numbers.

Table of values

n a(n)
1 0
2 4
3 432
4 61696
5 12300000
6 3339123264
7 1195810789376
8 549031054934016
9 315439869711260160
10 222215334010000000000
11 188664842745174745939968
12 190234762349632291168321536
13 224946256003775354246877765632
14 308520390288000443379128425267200
15 486093585063330330624000000000000000

List of values

[0, 4, 432, 61696, 12300000, 3339123264, 1195810789376, 549031054934016, 315439869711260160, 222215334010000000000, 188664842745174745939968, 190234762349632291168321536, 224946256003775354246877765632, 308520390288000443379128425267200, 486093585063330330624000000000000000]

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

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