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.

A215116 G.f. satisfies: A(x) = x + 3*x^2 + x*A(A(A(A(x)))).

Table of values

n a(n)
1 1
2 4
3 16
4 256
5 4864
6 111616
7 2983936
8 89743360
9 2970861568
10 106768629760
11 4125849419776
12 170207219286016
13 7454572671926272
14 345078981839552512
15 16822127738969128960
16 860944587541763325952
17 46137178395559050870784
18 2582843669636660403896320
19 150735442996358913332346880

List of values

[1, 4, 16, 256, 4864, 111616, 2983936, 89743360, 2970861568, 106768629760, 4125849419776, 170207219286016, 7454572671926272, 345078981839552512, 16822127738969128960, 860944587541763325952, 46137178395559050870784, 2582843669636660403896320, 150735442996358913332346880]

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

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