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.

A195257 O.g.f.: Sum_{n>=0} 5*(n+5)^(n-1)*x^n/(1+n*x)^n.

Table of values

n a(n)
0 1
1 5
2 30
3 185
4 1180
5 7845
6 54850
7 407225
8 3241200
9 27882725
10 260710150
11 2655929625
12 29459366500
13 354733101125
14 4617633830250
15 64677391201625
16 970313455915000
17 15525778234093125
18 263942044676848750
19 4750975877669605625
20 90268637043154147500

List of values

[1, 5, 30, 185, 1180, 7845, 54850, 407225, 3241200, 27882725, 260710150, 2655929625, 29459366500, 354733101125, 4617633830250, 64677391201625, 970313455915000, 15525778234093125, 263942044676848750, 4750975877669605625, 90268637043154147500]