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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.

A127815 a(n) = denominator of b(n), where b(1) = 2, b(n) = b(n-1) - 1/b(n-1).

Table of values

n a(n)
1 1
2 2
3 6
4 30
5 330
6 257070
7 128005692870
8 23279147893155496537470
9 388475314992168993748220639081347493631827670
10 102339769648127358726761918460732576814168548432921287355299929744910591862606847215978930

List of values

[1, 2, 6, 30, 330, 257070, 128005692870, 23279147893155496537470, 388475314992168993748220639081347493631827670, 102339769648127358726761918460732576814168548432921287355299929744910591862606847215978930]

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

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