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.

A215242 G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1+x)^((n+2)^2).

Table of values

n a(n)
0 1
1 4
2 26
3 256
4 3489
5 61696
6 1352518
7 35566368
8 1094499820
9 38670814348
10 1545160614694
11 68970980789472
12 3404652821768232
13 184295822142051600
14 10861040169788302030
15 692560292664515634112
16 47527552597795293035916
17 3493783983256399634130360
18 273974326317024551368217200

List of values

[1, 4, 26, 256, 3489, 61696, 1352518, 35566368, 1094499820, 38670814348, 1545160614694, 68970980789472, 3404652821768232, 184295822142051600, 10861040169788302030, 692560292664515634112, 47527552597795293035916, 3493783983256399634130360, 273974326317024551368217200]

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

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