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.

A052726 E.g.f. (1-sqrt(1-4*x-4*x^2))/ (2*(1+x)).

Table of values

n a(n)
0 0
1 1
2 2
3 18
4 216
5 3720
6 81360
7 2172240
8 68423040
9 2484639360
10 102190636800
11 4695453100800
12 238382331264000
13 13251891094041600
14 800600878273996800
15 52229642780899584000
16 3659347096696811520000
17 274040260725697449984000

List of values

[0, 1, 2, 18, 216, 3720, 81360, 2172240, 68423040, 2484639360, 102190636800, 4695453100800, 238382331264000, 13251891094041600, 800600878273996800, 52229642780899584000, 3659347096696811520000, 274040260725697449984000]

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

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