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.

A207571 G.f.: Sum_{n>=0} Product_{k=1..n} ((1+x)^(3*k-1) - 1).

Table of values

n a(n)
0 1
1 2
2 11
3 105
4 1390
5 23520
6 484247
7 11742927
8 327711230
9 10343198878
10 364237027076
11 14156867852699
12 601927703437645
13 27790427952836499
14 1384496764982434033
15 74027620787319243688
16 4228343290201028904807
17 256946673653717460509502
18 16551666142815138743519611

List of values

[1, 2, 11, 105, 1390, 23520, 484247, 11742927, 327711230, 10343198878, 364237027076, 14156867852699, 601927703437645, 27790427952836499, 1384496764982434033, 74027620787319243688, 4228343290201028904807, 256946673653717460509502, 16551666142815138743519611]