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.

A156325 E.g.f.: A(x) = exp( Sum_{n>=1} n(n+1)/2 * a(n-1)*x^n/n! ) = Sum_{n>=0} a(n)*x^n/n! with a(0)=1.

Table of values

n a(n)
0 1
1 1
2 4
3 34
4 482
5 10056
6 286372
7 10591372
8 491169996
9 27826318000
10 1887581200256
11 150885500428224
12 14028718134958936
13 1500672248541122944
14 182987661921689610000
15 25231215606822797450176
16 3906382859414378995123088
17 674864208557744341737593088
18 129369340822722468679389762496

List of values

[1, 1, 4, 34, 482, 10056, 286372, 10591372, 491169996, 27826318000, 1887581200256, 150885500428224, 14028718134958936, 1500672248541122944, 182987661921689610000, 25231215606822797450176, 3906382859414378995123088, 674864208557744341737593088, 129369340822722468679389762496]