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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.

A382804 a(n) = Sum_{k=0..n} k! * (k+1)! * Stirling1(n,k)^2.

Table of values

n a(n)
0 1
1 2
2 14
3 260
4 9588
5 581952
6 52096512
7 6423520896
8 1041005447424
9 214260350714496
10 54547409318781312
11 16820040059243046144
12 6175245603727007034624
13 2661063379044058584861696
14 1329787781176741647226481664
15 762665713456216694195942866944

List of values

[1, 2, 14, 260, 9588, 581952, 52096512, 6423520896, 1041005447424, 214260350714496, 54547409318781312, 16820040059243046144, 6175245603727007034624, 2661063379044058584861696, 1329787781176741647226481664, 762665713456216694195942866944]

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

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