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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.

A356578 Expansion of e.g.f. ( Product_{k>0} 1/(1 - k * x^k) )^x.

Table of values

n a(n)
0 1
1 0
2 2
3 15
4 92
5 1050
6 8514
7 147000
8 1546544
9 29673000
10 478186920
11 9011752200
12 178483287432
13 4205087686800
14 91775320005264
15 2290742704668600
16 63289842765692160
17 1696665419122968000
18 50287699532618564544
19 1549916411848463721600

List of values

[1, 0, 2, 15, 92, 1050, 8514, 147000, 1546544, 29673000, 478186920, 9011752200, 178483287432, 4205087686800, 91775320005264, 2290742704668600, 63289842765692160, 1696665419122968000, 50287699532618564544, 1549916411848463721600]

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

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