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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.

A062805 a(n) = Sum_{i=1..n} i*n^(n-i).

Table of values

n a(n)
0 0
1 1
2 4
3 18
4 112
5 975
6 11196
7 160132
8 2739136
9 54481005
10 1234567900
11 31384283766
12 884241366768
13 27342891567355
14 920521275490012
15 33512287529147400
16 1311768467463790336
17 54933923640889550745
18 2450641333409472928572
19 116018436597364068498010

List of values

[0, 1, 4, 18, 112, 975, 11196, 160132, 2739136, 54481005, 1234567900, 31384283766, 884241366768, 27342891567355, 920521275490012, 33512287529147400, 1311768467463790336, 54933923640889550745, 2450641333409472928572, 116018436597364068498010]

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

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