cp's OEIS Frontend

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.

A218687 O.g.f.: Sum_{n>=0} n^n * (1+n^3*x)^n * x^n/n! * exp(-n*(1+n^3*x)*x).

Table of values

n a(n)
0 1
1 1
2 2
3 31
4 398
5 10476
6 296407
7 12613297
8 592445192
9 36797742660
10 2524966492661
11 212912151736648
12 19819138754732997
13 2155966497948737905
14 259256365067737582615
15 35050667748654756208069
16 5257919606219599751747894
17 858816581875175776426876930

List of values

[1, 1, 2, 31, 398, 10476, 296407, 12613297, 592445192, 36797742660, 2524966492661, 212912151736648, 19819138754732997, 2155966497948737905, 259256365067737582615, 35050667748654756208069, 5257919606219599751747894, 858816581875175776426876930]