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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.

A379193 G.f. A(x) satisfies A(x) = (1 + x*A(x))^2/(1 - x*A(x)^2).

Table of values

n a(n)
0 1
1 3
2 16
3 113
4 921
5 8161
6 76362
7 742402
8 7425651
9 75918094
10 789808133
11 8334087494
12 88983204682
13 959557630166
14 10435688564260
15 114329775220590
16 1260613164978289
17 13978381013355836
18 155778935125738138
19 1743836357339342353
20 19599785557100463390
21 221094189317073465597
22 2502296315746442064053

List of values

[1, 3, 16, 113, 921, 8161, 76362, 742402, 7425651, 75918094, 789808133, 8334087494, 88983204682, 959557630166, 10435688564260, 114329775220590, 1260613164978289, 13978381013355836, 155778935125738138, 1743836357339342353, 19599785557100463390, 221094189317073465597, 2502296315746442064053]

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

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