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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.

A181075 a(n) = Sum_{k=0..n-1} C(n-1,k)^(k+1) * n/(n-k).

Table of values

n a(n)
1 1
2 3
3 10
4 71
5 1026
6 30912
7 2219946
8 339460991
9 112986526834
10 91234232847938
11 161113616883239406
12 619495336824891912596
13 5839092706931985694730356
14 124192664709851995516427897172
15 5681764626723349386531457243004370

List of values

[1, 3, 10, 71, 1026, 30912, 2219946, 339460991, 112986526834, 91234232847938, 161113616883239406, 619495336824891912596, 5839092706931985694730356, 124192664709851995516427897172, 5681764626723349386531457243004370]

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

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