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.

A370045 Expansion of 1 / Sum_{n>=0} (-4)^n * (2*4^n + 1)/3 * x^(n*(n+1)/2).

Table of values

n a(n)
0 1
1 12
2 144
3 1552
4 16512
5 172800
6 1803200
7 18765312
8 195167232
9 2028914688
10 21089678592
11 219201730560
12 2278287884288
13 23679245377536
14 246107817345024
15 2557891149933568
16 26585106479751168
17 276308723697205248
18 2871777147680423936
19 29847423508786839552
20 310215112347152351232

List of values

[1, 12, 144, 1552, 16512, 172800, 1803200, 18765312, 195167232, 2028914688, 21089678592, 219201730560, 2278287884288, 23679245377536, 246107817345024, 2557891149933568, 26585106479751168, 276308723697205248, 2871777147680423936, 29847423508786839552, 310215112347152351232]