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.

A349534 G.f. A(x) satisfies A(x) = 1 / ((1 - 3 * x) * (1 - x * A(x)^2)).

Table of values

n a(n)
0 1
1 4
2 21
3 138
4 1063
5 9075
6 82770
7 789204
8 7766721
9 78267306
10 803447526
11 8371413999
12 88300495746
13 941004684748
14 10116276976218
15 109578418285452
16 1194764348642313
17 13102287157827918
18 144422108994233625
19 1599198859915070640
20 17780781456147340764

List of values

[1, 4, 21, 138, 1063, 9075, 82770, 789204, 7766721, 78267306, 803447526, 8371413999, 88300495746, 941004684748, 10116276976218, 109578418285452, 1194764348642313, 13102287157827918, 144422108994233625, 1599198859915070640, 17780781456147340764]

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

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