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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.

A382806 a(n) = Sum_{k=0..n} (k!)^2 * binomial(k+2,2) * Stirling1(n,k)^2.

Table of values

n a(n)
0 1
1 3
2 27
3 588
4 24612
5 1669128
6 165049224
7 22269896064
8 3918921022656
9 870149951146944
10 237662482188210624
11 78249086559726140160
12 30547324837444471084800
13 13946361918619108837939200
14 7359961832428044552536217600
15 4444946383758589481684168540160

List of values

[1, 3, 27, 588, 24612, 1669128, 165049224, 22269896064, 3918921022656, 870149951146944, 237662482188210624, 78249086559726140160, 30547324837444471084800, 13946361918619108837939200, 7359961832428044552536217600, 4444946383758589481684168540160]

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

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