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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.

A097419 a(1) = 2, a(n) = 2*a(n-1)^2 - a(n-1) for n > 1.

Table of values

n a(n)
1 2
2 6
3 66
4 8646
5 149497986
6 44699295486614406
7 3996054033999333969062944766851266
8 31936895685284700329548847429175178142518023225832967407199564754246

List of values

[2, 6, 66, 8646, 149497986, 44699295486614406, 3996054033999333969062944766851266, 31936895685284700329548847429175178142518023225832967407199564754246]

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

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