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.

A209397 L.g.f.: Sum_{n>=1} a(n)*x^n/n = Sum_{n>=1} x^n/n * exp( Sum_{k>=1} a(k)*x^(n*k)/k ).

Table of values

n a(n)
1 1
2 3
3 7
4 19
5 46
6 129
7 337
8 939
9 2581
10 7238
11 20263
12 57337
13 162319
14 461961
15 1317217
16 3767035
17 10792400
18 30983565
19 89084845
20 256531814
21 739658815
22 2135234247
23 6170505666
24 17849457873
25 51679366171
26 149750711581
27 434260829464
28 1260198317509
29 3659410074933

List of values

[1, 3, 7, 19, 46, 129, 337, 939, 2581, 7238, 20263, 57337, 162319, 461961, 1317217, 3767035, 10792400, 30983565, 89084845, 256531814, 739658815, 2135234247, 6170505666, 17849457873, 51679366171, 149750711581, 434260829464, 1260198317509, 3659410074933]