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.

A331658 E.g.f.: exp(x/(1 - 2*x)) / (1 - x).

Table of values

n a(n)
0 1
1 2
2 9
3 64
4 617
5 7446
6 107377
7 1795844
8 34114929
9 724822282
10 17018900921
11 437402060712
12 12208463140249
13 367629791490014
14 11876750557295457
15 409663873470828076
16 15023747377122799457
17 583644746007467984274
18 23939828792355240206569
19 1033788018952899566018192

List of values

[1, 2, 9, 64, 617, 7446, 107377, 1795844, 34114929, 724822282, 17018900921, 437402060712, 12208463140249, 367629791490014, 11876750557295457, 409663873470828076, 15023747377122799457, 583644746007467984274, 23939828792355240206569, 1033788018952899566018192]