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.

A188455 G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1 + 2^n*x)^(2n+1).

Table of values

n a(n)
0 1
1 1
2 5
3 77
4 3191
5 332481
6 83495679
7 49089025473
8 66142622730623
9 200954040909283841
10 1359156203343916471295
11 20253823024219712679748609
12 659335186924510858208484730879
13 46554554840488755704034417937268737

List of values

[1, 1, 5, 77, 3191, 332481, 83495679, 49089025473, 66142622730623, 200954040909283841, 1359156203343916471295, 20253823024219712679748609, 659335186924510858208484730879, 46554554840488755704034417937268737]