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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.

A058058 Generalized Somos-7 sequence: a(n)*a(n+7) = 3*a(n+1)*a(n+6) - 4*a(n+2)* a(n+5) + 4*a(n+3)*a(n+4).

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 9
10 19
11 33
12 131
13 681
14 3921
15 23801
16 132881
17 598121
18 7466321
19 141401273
20 1865484899
21 19358862929
22 314151573363
23 7831607063961
24 237725833277411
25 8937694547422641
26 293153245305595201
27 7098035759907924561
28 310194702846756799041
29 35075042744420641281841

List of values

[1, 1, 1, 1, 1, 1, 1, 3, 9, 19, 33, 131, 681, 3921, 23801, 132881, 598121, 7466321, 141401273, 1865484899, 19358862929, 314151573363, 7831607063961, 237725833277411, 8937694547422641, 293153245305595201, 7098035759907924561, 310194702846756799041, 35075042744420641281841]

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

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