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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.

A343900 a(n) = Sum_{k=0..n} (k!)^(k+1) * binomial(n,k).

Table of values

n a(n)
0 1
1 2
2 11
3 1324
4 7967861
5 2986023826166
6 100306147958903465407
7 416336313421816733159702737376
8 281633758448076539969292901914477101456489
9 39594086612245054028213574779019294652734771094507399786

List of values

[1, 2, 11, 1324, 7967861, 2986023826166, 100306147958903465407, 416336313421816733159702737376, 281633758448076539969292901914477101456489, 39594086612245054028213574779019294652734771094507399786]

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

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