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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.

A062808 a(n) = Sum_{i=1..n} n^i * (n - i).

Table of values

n a(n)
1 0
2 2
3 15
4 108
5 970
6 11190
7 160125
8 2739128
9 54480996
10 1234567890
11 31384283755
12 884241366756
13 27342891567342
14 920521275489998
15 33512287529147385
16 1311768467463790320
17 54933923640889550728
18 2450641333409472928554

List of values

[0, 2, 15, 108, 970, 11190, 160125, 2739128, 54480996, 1234567890, 31384283755, 884241366756, 27342891567342, 920521275489998, 33512287529147385, 1311768467463790320, 54933923640889550728, 2450641333409472928554]

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

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