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.

A174465 G.f.: exp( Sum_{n>=1} A174466(n)*x^n/n ) where A174466(n) = Sum_{d|n} d*sigma(n/d)*tau(d).

Table of values

n a(n)
0 1
1 1
2 4
3 7
4 19
5 31
6 74
7 122
8 258
9 430
10 835
11 1378
12 2557
13 4162
14 7382
15 11932
16 20471
17 32676
18 54634
19 86251
20 141001
21 220371
22 353413
23 546783
24 863043
25 1322425
26 2057525
27 3125092
28 4801297
29 7230393
30 10984924
31 16410474
32 24679719
33 36593278
34 54526145
35 80272501

List of values

[1, 1, 4, 7, 19, 31, 74, 122, 258, 430, 835, 1378, 2557, 4162, 7382, 11932, 20471, 32676, 54634, 86251, 141001, 220371, 353413, 546783, 863043, 1322425, 2057525, 3125092, 4801297, 7230393, 10984924, 16410474, 24679719, 36593278, 54526145, 80272501]