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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.

A124405 a(n) = 1 + Sum_{i=1..n} Sum_{j=1..n} i^j.

Table of values

n a(n)
1 2
2 9
3 57
4 495
5 5700
6 82201
7 1419761
8 28501117
9 651233662
10 16676686697
11 472883843993
12 14705395791307
13 497538872883728
14 18193397941038737
15 714950006521386977
16 30046260016074301945
17 1344648068888240941018

List of values

[2, 9, 57, 495, 5700, 82201, 1419761, 28501117, 651233662, 16676686697, 472883843993, 14705395791307, 497538872883728, 18193397941038737, 714950006521386977, 30046260016074301945, 1344648068888240941018]

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

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