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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.

A081077 a(n) = Lucas(4*n+2) + 3, or Lucas(2*n)*Lucas(2*n+2).

Table of values

n a(n)
0 6
1 21
2 126
3 846
4 5781
5 39606
6 271446
7 1860501
8 12752046
9 87403806
10 599074581
11 4106118246
12 28143753126
13 192900153621
14 1322157322206
15 9062201101806
16 62113250390421
17 425730551631126
18 2918000611027446
19 20000273725560981

List of values

[6, 21, 126, 846, 5781, 39606, 271446, 1860501, 12752046, 87403806, 599074581, 4106118246, 28143753126, 192900153621, 1322157322206, 9062201101806, 62113250390421, 425730551631126, 2918000611027446, 20000273725560981]

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

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