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.

A347897 E.g.f.: Product_{k>=1} 1 / (1 - x^k)^(tan(x)/k).

Table of values

n a(n)
0 1
1 0
2 2
3 6
4 36
5 250
6 1744
7 18312
8 158960
9 2046672
10 23152216
11 332066240
12 4628867680
13 75851021376
14 1225796994720
15 22407297808560
16 420285940934912
17 8427749606274560
18 177279678667864320
19 3930905732908421376
20 91016443490231306112
21 2210008179756128156160
22 55958663509700641300736

List of values

[1, 0, 2, 6, 36, 250, 1744, 18312, 158960, 2046672, 23152216, 332066240, 4628867680, 75851021376, 1225796994720, 22407297808560, 420285940934912, 8427749606274560, 177279678667864320, 3930905732908421376, 91016443490231306112, 2210008179756128156160, 55958663509700641300736]