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.

A081009 a(n) = Fibonacci(4n+3) - 1, or Fibonacci(2n+2)*Lucas(2n+1).

Table of values

n a(n)
0 1
1 12
2 88
3 609
4 4180
5 28656
6 196417
7 1346268
8 9227464
9 63245985
10 433494436
11 2971215072
12 20365011073
13 139583862444
14 956722026040
15 6557470319841
16 44945570212852
17 308061521170128
18 2111485077978049
19 14472334024676220
20 99194853094755496

List of values

[1, 12, 88, 609, 4180, 28656, 196417, 1346268, 9227464, 63245985, 433494436, 2971215072, 20365011073, 139583862444, 956722026040, 6557470319841, 44945570212852, 308061521170128, 2111485077978049, 14472334024676220, 99194853094755496]

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

Content is available under The OEIS End-User License Agreement.