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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.

A382918 G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x) / (1-x)^2 )^2.

Table of values

n a(n)
0 1
1 2
2 11
3 64
4 401
5 2652
6 18241
7 129216
8 936469
9 6911238
10 51764834
11 392494366
12 3006851913
13 23238830982
14 180974578418
15 1418728452902
16 11186978492689
17 88668723061112
18 706042492550773
19 5645331629000370
20 45307653034905824
21 364860349786846894
22 2947299389835541583

List of values

[1, 2, 11, 64, 401, 2652, 18241, 129216, 936469, 6911238, 51764834, 392494366, 3006851913, 23238830982, 180974578418, 1418728452902, 11186978492689, 88668723061112, 706042492550773, 5645331629000370, 45307653034905824, 364860349786846894, 2947299389835541583]

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

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