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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.

A369723 Expansion of e.g.f. exp( 2 * (1-sqrt(1-4*x)) ).

Table of values

n a(n)
0 1
1 4
2 24
3 208
4 2464
5 37824
6 720256
7 16450816
8 439245312
9 13440572416
10 464007387136
11 17847329869824
12 757011972726784
13 35108108023349248
14 1767517592731090944
15 96007679735852498944
16 5596725706163142393856
17 348533116657888468402176

List of values

[1, 4, 24, 208, 2464, 37824, 720256, 16450816, 439245312, 13440572416, 464007387136, 17847329869824, 757011972726784, 35108108023349248, 1767517592731090944, 96007679735852498944, 5596725706163142393856, 348533116657888468402176]

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

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