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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.

A087314 a(n) = (1/n) * Sum_{k = 0..n} n^binomial(n,k).

Table of values

n a(n)
1 2
2 4
3 20
4 1154
5 3907502
6 609516468354242
7 108233912076063807870514781000
8 205688069665244291374160325606433848956971528595913979304345602
9 381367496233593231179533022742555015402552706280473714446093438118953849830784189071820024395733993533363857256493600698

List of values

[2, 4, 20, 1154, 3907502, 609516468354242, 108233912076063807870514781000, 205688069665244291374160325606433848956971528595913979304345602, 381367496233593231179533022742555015402552706280473714446093438118953849830784189071820024395733993533363857256493600698]

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

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