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.

A307680 Expansion of e.g.f. Product_{k>=1} (1 + x^k/(1 - x)^k)^(1/k).

Table of values

n a(n)
0 1
1 1
2 3
3 17
4 131
5 1239
6 14029
7 187627
8 2906553
9 50982929
10 993806531
11 21270277401
12 496425262123
13 12577053063847
14 344382608381421
15 10139294386051139
16 319175215666010609
17 10684742192933940897
18 378662321114852778883
19 14158327369578651838369
20 557151639159864934384851

List of values

[1, 1, 3, 17, 131, 1239, 14029, 187627, 2906553, 50982929, 993806531, 21270277401, 496425262123, 12577053063847, 344382608381421, 10139294386051139, 319175215666010609, 10684742192933940897, 378662321114852778883, 14158327369578651838369, 557151639159864934384851]