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.

A193341 E.g.f. satisfies: A(A(x)) = x*exp(A(x)), where A(x) = Sum_{n>=1} a(n)/(n!*2^(n-1)).

Table of values

n a(n)
1 1
2 2
3 6
4 16
5 0
6 -144
7 5488
8 47104
9 -2799360
10 -29427200
11 3293554176
12 40830142464
13 -7642645477376
14 -109489995819008
15 31826754503424000
16 518027268557111296
17 -221570477108873330688
18 -4041287223180417957888
19 2438941389381370203996160
20 49292069262802363796684800

List of values

[1, 2, 6, 16, 0, -144, 5488, 47104, -2799360, -29427200, 3293554176, 40830142464, -7642645477376, -109489995819008, 31826754503424000, 518027268557111296, -221570477108873330688, -4041287223180417957888, 2438941389381370203996160, 49292069262802363796684800]