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.

A360834 Expansion of Sum_{k>=0} (k * x)^k / (1 - (k * x)^2)^(k+1).

Table of values

n a(n)
0 1
1 1
2 4
3 29
4 304
5 4100
6 67520
7 1314167
8 29520128
9 751658635
10 21393444864
11 673046604600
12 23192501108736
13 868730852002205
14 35145114836811776
15 1527192185786650417
16 70941146068492943360
17 3508043437942077557884
18 183989995827118805352448

List of values

[1, 1, 4, 29, 304, 4100, 67520, 1314167, 29520128, 751658635, 21393444864, 673046604600, 23192501108736, 868730852002205, 35145114836811776, 1527192185786650417, 70941146068492943360, 3508043437942077557884, 183989995827118805352448]