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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.

A002812 a(n) = 2*a(n-1)^2 - 1, starting a(0) = 2.

Table of values

n a(n)
0 2
1 7
2 97
3 18817
4 708158977
5 1002978273411373057
6 2011930833870518011412817828051050497
7 8095731360557835890888779535060256832479295062749579257164654370487894017

List of values

[2, 7, 97, 18817, 708158977, 1002978273411373057, 2011930833870518011412817828051050497, 8095731360557835890888779535060256832479295062749579257164654370487894017]

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

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