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.

A348580 Expansion of e.g.f. exp(x) / (1 - sin(x)).

Table of values

n a(n)
0 1
1 2
2 5
3 15
4 53
5 217
6 1015
7 5355
8 31513
9 204857
10 1458875
11 11299695
12 94600373
13 851419597
14 8198959735
15 84124450035
16 916270051633
17 10559066809937
18 128362804540595
19 1641730799916375
20 22037407161945293
21 309782122281453877
22 4551072446448773455
23 69747642031977698715

List of values

[1, 2, 5, 15, 53, 217, 1015, 5355, 31513, 204857, 1458875, 11299695, 94600373, 851419597, 8198959735, 84124450035, 916270051633, 10559066809937, 128362804540595, 1641730799916375, 22037407161945293, 309782122281453877, 4551072446448773455, 69747642031977698715]