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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.

A081067 a(n) = Lucas(4n+2)+2, or 5*Fibonacci(2n+1)^2.

Table of values

n a(n)
0 5
1 20
2 125
3 845
4 5780
5 39605
6 271445
7 1860500
8 12752045
9 87403805
10 599074580
11 4106118245
12 28143753125
13 192900153620
14 1322157322205
15 9062201101805
16 62113250390420
17 425730551631125
18 2918000611027445
19 20000273725560980

List of values

[5, 20, 125, 845, 5780, 39605, 271445, 1860500, 12752045, 87403805, 599074580, 4106118245, 28143753125, 192900153620, 1322157322205, 9062201101805, 62113250390420, 425730551631125, 2918000611027445, 20000273725560980]

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

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