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.

A220352 G.f.: Sum_{n>=0} ((1+x)^n - 1)^n / (1+x)^(n^2).

Table of values

n a(n)
0 1
1 1
2 3
3 16
4 118
5 1116
6 12869
7 175096
8 2745726
9 48756438
10 967026762
11 21188546616
12 508286084222
13 13249410224210
14 372908807794347
15 11270832179901016
16 364083312029454453
17 12518063823862065816
18 456432182550333723335
19 17591590487681007523476

List of values

[1, 1, 3, 16, 118, 1116, 12869, 175096, 2745726, 48756438, 967026762, 21188546616, 508286084222, 13249410224210, 372908807794347, 11270832179901016, 364083312029454453, 12518063823862065816, 456432182550333723335, 17591590487681007523476]