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.

A218504 E.g.f.: Product_{n>=1} 1/(1 - tanh(x^n/n)).

Table of values

n a(n)
0 1
1 1
2 3
3 9
4 40
5 200
6 1286
7 9002
8 74712
9 672408
10 6892312
11 75815432
12 925733216
13 12034531808
14 170656068480
15 2559841027200
16 41356302857344
17 703057148574848
18 12752569691858048
19 242298824145302912
20 4875886476833445888
21 102393616013502363648
22 2264106940756915715584

List of values

[1, 1, 3, 9, 40, 200, 1286, 9002, 74712, 672408, 6892312, 75815432, 925733216, 12034531808, 170656068480, 2559841027200, 41356302857344, 703057148574848, 12752569691858048, 242298824145302912, 4875886476833445888, 102393616013502363648, 2264106940756915715584]