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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.

A090729 a(n) = 21a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 21.

Table of values

n a(n)
0 2
1 21
2 439
3 9198
4 192719
5 4037901
6 84603202
7 1772629341
8 37140612959
9 778180242798
10 16304644485799
11 341619353958981
12 7157701788652802
13 149970118207749861
14 3142214780574094279
15 65836540273848229998

List of values

[2, 21, 439, 9198, 192719, 4037901, 84603202, 1772629341, 37140612959, 778180242798, 16304644485799, 341619353958981, 7157701788652802, 149970118207749861, 3142214780574094279, 65836540273848229998]

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

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