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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.

A382919 G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x) / (1-x)^3 )^2.

Table of values

n a(n)
0 1
1 2
2 13
3 84
4 580
5 4216
6 31824
7 247168
8 1962800
9 15866016
10 130122304
11 1080101760
12 9057113472
13 76610188544
14 652895283200
15 5600752756224
16 48323092761344
17 419068973537792
18 3650909105378304
19 31937405800724480
20 280419948474447872
21 2470473454986891264

List of values

[1, 2, 13, 84, 580, 4216, 31824, 247168, 1962800, 15866016, 130122304, 1080101760, 9057113472, 76610188544, 652895283200, 5600752756224, 48323092761344, 419068973537792, 3650909105378304, 31937405800724480, 280419948474447872, 2470473454986891264]

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

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