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.

A219504 E.g.f.: Sum_{n>=0} a(n) * (cos(n*x)-sin(n*x)) * x^n/n! = 1/(1-x).

Table of values

n a(n)
0 1
1 1
2 4
3 33
4 512
5 13005
6 494976
7 26383917
8 1876721664
9 171728626617
10 19650536857600
11 2749029193911033
12 461590186944847872
13 91611982632843733125
14 21215197576393952452608
15 5669317752667727770720965
16 1731566894935958076783067136
17 599421136964093700021081229041

List of values

[1, 1, 4, 33, 512, 13005, 494976, 26383917, 1876721664, 171728626617, 19650536857600, 2749029193911033, 461590186944847872, 91611982632843733125, 21215197576393952452608, 5669317752667727770720965, 1731566894935958076783067136, 599421136964093700021081229041]