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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.

A141083 a(n) = 2^(p - 2)*(2^p - 2), where p = prime(n).

Table of values

n a(n)
1 2
2 12
3 240
4 4032
5 1047552
6 16773120
7 4294901760
8 68719214592
9 17592181850112
10 72057593769492480
11 1152921503533105152
12 4722366482800925736960
13 1208925819613529663078400
14 19342813113829668748787712

List of values

[2, 12, 240, 4032, 1047552, 16773120, 4294901760, 68719214592, 17592181850112, 72057593769492480, 1152921503533105152, 4722366482800925736960, 1208925819613529663078400, 19342813113829668748787712]

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

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