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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.

A301797 a(n) = (4^prime(n) - 1)/3.

Table of values

n a(n)
1 5
2 21
3 341
4 5461
5 1398101
6 22369621
7 5726623061
8 91625968981
9 23456248059221
10 96076792050570581
11 1537228672809129301
12 6296488643826193618261
13 1611901092819505566274901
14 25790417485112089060398421
15 6602346876188694799461995861
16 27043212804868893898596335048021

List of values

[5, 21, 341, 5461, 1398101, 22369621, 5726623061, 91625968981, 23456248059221, 96076792050570581, 1537228672809129301, 6296488643826193618261, 1611901092819505566274901, 25790417485112089060398421, 6602346876188694799461995861, 27043212804868893898596335048021]

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

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