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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.

A369208 Expansion of (1/x) * Series_Reversion( x * (1-x)^2 / (1+x^2) ).

Table of values

n a(n)
0 1
1 2
2 8
3 38
4 200
5 1122
6 6576
7 39790
8 246672
9 1558658
10 10001592
11 64997814
12 426922392
13 2829624514
14 18901301984
15 127115260894
16 859978039840
17 5848754717314
18 39964745880552
19 274231943135686
20 1888891689752680
21 13055393137141282
22 90517646431869328

List of values

[1, 2, 8, 38, 200, 1122, 6576, 39790, 246672, 1558658, 10001592, 64997814, 426922392, 2829624514, 18901301984, 127115260894, 859978039840, 5848754717314, 39964745880552, 274231943135686, 1888891689752680, 13055393137141282, 90517646431869328]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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