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.

A182507 G.f.: Sum_{n>=0} n! * 2^(n*(n-1)/2) * x^n / Product_{k=1..n} (1 + k*2^k*x).

Table of values

n a(n)
0 1
1 1
2 2
3 12
4 232
5 12848
6 1858464
7 663242944
8 562426769024
9 1103780804371200
10 4916976475489286656
11 48986367134323580374016
12 1078808700869188981508990976
13 52024935094126934151475827453952
14 5451309776848243787358722272838524928

List of values

[1, 1, 2, 12, 232, 12848, 1858464, 663242944, 562426769024, 1103780804371200, 4916976475489286656, 48986367134323580374016, 1078808700869188981508990976, 52024935094126934151475827453952, 5451309776848243787358722272838524928]