cp's OEIS Frontend

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.

A162771 a(n) = ((2+sqrt(5))*(3+sqrt(5))^n + (2-sqrt(5))*(3-sqrt(5))^n)/2.

Table of values

n a(n)
0 2
1 11
2 58
3 304
4 1592
5 8336
6 43648
7 228544
8 1196672
9 6265856
10 32808448
11 171787264
12 899489792
13 4709789696
14 24660779008
15 129125515264
16 676109975552
17 3540157792256
18 18536506851328
19 97058409938944
20 508204432228352

List of values

[2, 11, 58, 304, 1592, 8336, 43648, 228544, 1196672, 6265856, 32808448, 171787264, 899489792, 4709789696, 24660779008, 129125515264, 676109975552, 3540157792256, 18536506851328, 97058409938944, 508204432228352]