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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.

A047794 a(n) = Sum_{k=0..n} C(n,k)*|Stirling1(n,k)*Stirling2(n,k)|.

Table of values

n a(n)
0 1
1 1
2 3
3 34
4 631
5 16871
6 617356
7 28968990
8 1680536159
9 117572734195
10 9715771690081
11 932711356031016
12 102653506699902874
13 12810868034079756421
14 1795954763065584594656
15 280569433733767673934426
16 48506369621902094002862671
17 9224242346164172284054561019

List of values

[1, 1, 3, 34, 631, 16871, 617356, 28968990, 1680536159, 117572734195, 9715771690081, 932711356031016, 102653506699902874, 12810868034079756421, 1795954763065584594656, 280569433733767673934426, 48506369621902094002862671, 9224242346164172284054561019]

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

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