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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.

A307066 a(n) = exp(-1) * Sum_{k>=0} (n*k + 1)^n/k!.

Table of values

n a(n)
0 1
1 2
2 13
3 199
4 5329
5 216151
6 12211597
7 909102342
8 85761187393
9 9957171535975
10 1390946372509101
11 229587693339867567
12 44117901231194922193
13 9748599124579281064294
14 2451233017637221706477037
15 695088863051920283838281851
16 220558203335628758134165860609

List of values

[1, 2, 13, 199, 5329, 216151, 12211597, 909102342, 85761187393, 9957171535975, 1390946372509101, 229587693339867567, 44117901231194922193, 9748599124579281064294, 2451233017637221706477037, 695088863051920283838281851, 220558203335628758134165860609]

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

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