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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.

A010919 Pisot sequence T(4,13), a(n) = floor(a(n-1)^2/a(n-2)).

Table of values

n a(n)
0 4
1 13
2 42
3 135
4 433
5 1388
6 4449
7 14260
8 45706
9 146496
10 469546
11 1504979
12 4823727
13 15460908
14 49554976
15 158832563
16 509086778
17 1631714194
18 5229935889
19 16762880107
20 53728029453
21 172207945799
22 551957272549
23 1769121798104
24 5670351840955
25 18174492018967

List of values

[4, 13, 42, 135, 433, 1388, 4449, 14260, 45706, 146496, 469546, 1504979, 4823727, 15460908, 49554976, 158832563, 509086778, 1631714194, 5229935889, 16762880107, 53728029453, 172207945799, 551957272549, 1769121798104, 5670351840955, 18174492018967]

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

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