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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.

A090249 a(n) = 28a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 28.

Table of values

n a(n)
0 2
1 28
2 782
3 21868
4 611522
5 17100748
6 478209422
7 13372763068
8 373959156482
9 10457483618428
10 292435582159502
11 8177738816847628
12 228684251289574082
13 6394981297291226668
14 178830792072864772622
15 5000867196742922406748

List of values

[2, 28, 782, 21868, 611522, 17100748, 478209422, 13372763068, 373959156482, 10457483618428, 292435582159502, 8177738816847628, 228684251289574082, 6394981297291226668, 178830792072864772622, 5000867196742922406748]

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

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