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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.

A320282 a(n) = (3^(prime(n)-1) - 2^(prime(n)-1))/prime(n).

Table of values

n a(n)
3 13
4 95
5 5275
6 40565
7 2528305
8 20376755
9 1364211535
10 788845655845
11 6641614785575
12 4056609907500605
13 296528399013300025
14 2544627551941066235
15 188573149984760785495
16 121907205372133465501165
17 79832689778949397606269355
18 694937020886283311634222725
19 461241110187445155009340352195

List of values

[13, 95, 5275, 40565, 2528305, 20376755, 1364211535, 788845655845, 6641614785575, 4056609907500605, 296528399013300025, 2544627551941066235, 188573149984760785495, 121907205372133465501165, 79832689778949397606269355, 694937020886283311634222725, 461241110187445155009340352195]

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

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