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.

A203253 L.g.f.: Sum_{n>=1} a(n)*x^n/n = Sum_{n>=1} x^n/n * exp( Sum_{k>=1} a(n*k)*x^(n*k)/k ).

Table of values

n a(n)
1 1
2 3
3 7
4 23
5 51
6 195
7 435
8 1631
9 4165
10 14563
11 34761
12 141479
13 327471
14 1222287
15 3267177
16 11804959
17 28562075
18 114349947
19 272702593
20 1056583023
21 2786781123
22 9966908779
23 24678676437
24 101422669199
25 243331437901
26 915276550503
27 2464145600011
28 9064045943983
29 22324762587821

List of values

[1, 3, 7, 23, 51, 195, 435, 1631, 4165, 14563, 34761, 141479, 327471, 1222287, 3267177, 11804959, 28562075, 114349947, 272702593, 1056583023, 2786781123, 9966908779, 24678676437, 101422669199, 243331437901, 915276550503, 2464145600011, 9064045943983, 22324762587821]