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.

A317664 G.f.: Sum_{n>=0} ( (1+x)^n - 1 )^n * 4^n / (5 - 4*(1+x)^n)^(n+1).

Table of values

n a(n)
0 1
1 4
2 96
3 3520
4 181584
5 12046208
6 976817408
7 93618157824
8 10353263884352
9 1297682198608960
10 181792547403610112
11 28148715766252519424
12 4773717142486206475264
13 879979421777903153737728
14 175192929827140711780067328
15 37462651348142346656294109184
16 8563418069261195349710481467648
17 2083773631690873034841394464054272

List of values

[1, 4, 96, 3520, 181584, 12046208, 976817408, 93618157824, 10353263884352, 1297682198608960, 181792547403610112, 28148715766252519424, 4773717142486206475264, 879979421777903153737728, 175192929827140711780067328, 37462651348142346656294109184, 8563418069261195349710481467648, 2083773631690873034841394464054272]