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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.

A325912 a(n) = (-1)^n * Sum_{k=0..n} (-1)^k*2^(2^k).

Table of values

n a(n)
0 2
1 2
2 14
3 242
4 65294
5 4294902002
6 18446744069414649614
7 340282366920938463444927863362353561842
8 115792089237316195423570985008687907852929702298719625576012656144550776078094

List of values

[2, 2, 14, 242, 65294, 4294902002, 18446744069414649614, 340282366920938463444927863362353561842, 115792089237316195423570985008687907852929702298719625576012656144550776078094]

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

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