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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.

A344051 a(n) = Sum_{k=0..n} binomial(n, k)*|Lah(n, k)|. Binomial convolution of the unsigned Lah numbers A271703.

Table of values

n a(n)
0 1
1 1
2 5
3 37
4 361
5 4301
6 60001
7 954325
8 16984577
9 333572041
10 7151967181
11 165971975621
12 4139744524345
13 110333560295557
14 3126749660583641
15 93819198847833061
16 2969676820062708481
17 98843743790129998865
18 3449675368718647501717
19 125921086600579132143781
20 4796519722094585691925961

List of values

[1, 1, 5, 37, 361, 4301, 60001, 954325, 16984577, 333572041, 7151967181, 165971975621, 4139744524345, 110333560295557, 3126749660583641, 93819198847833061, 2969676820062708481, 98843743790129998865, 3449675368718647501717, 125921086600579132143781, 4796519722094585691925961]

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

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