cp's OEIS Frontend

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.

A210454 Cipolla pseudoprimes to base 2: (4^p-1)/3 for any prime p greater than 3.

Table of values

n a(n)
1 341
2 5461
3 1398101
4 22369621
5 5726623061
6 91625968981
7 23456248059221
8 96076792050570581
9 1537228672809129301
10 6296488643826193618261
11 1611901092819505566274901
12 25790417485112089060398421
13 6602346876188694799461995861

List of values

[341, 5461, 1398101, 22369621, 5726623061, 91625968981, 23456248059221, 96076792050570581, 1537228672809129301, 6296488643826193618261, 1611901092819505566274901, 25790417485112089060398421, 6602346876188694799461995861]

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

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