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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.

A289926 p-INVERT of the upper Wythoff sequence (A001950), where p(S) = 1 - S - S^2.

Table of values

n a(n)
0 2
1 13
2 71
3 376
4 1991
5 10564
6 56051
7 297384
8 1577797
9 8371133
10 44413759
11 235640987
12 1250213362
13 6633113651
14 35192550325
15 186717077925
16 990643385291
17 5255942989944
18 27885853904294
19 147950776760552
20 784965467407868
21 4164701250741605
22 22096177765889378

List of values

[2, 13, 71, 376, 1991, 10564, 56051, 297384, 1577797, 8371133, 44413759, 235640987, 1250213362, 6633113651, 35192550325, 186717077925, 990643385291, 5255942989944, 27885853904294, 147950776760552, 784965467407868, 4164701250741605, 22096177765889378]

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

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