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.

A238536 A fourth-order linear divisibility sequence related to the Fibonacci numbers: a(n) = (1/2)*Fibonacci(3*n)*Lucas(n).

Table of values

n a(n)
1 1
2 12
3 68
4 504
5 3355
6 23256
7 158717
8 1089648
9 7463884
10 51170460
11 350695511
12 2403786672
13 16475579353
14 112925875764
15 774003961940
16 5305106018016
17 36361727272627
18 249227013404808
19 1708227291909269
20 11708364225400920
21 80250321774226396
22 550043889533755332
23 3770056901455017263

List of values

[1, 12, 68, 504, 3355, 23256, 158717, 1089648, 7463884, 51170460, 350695511, 2403786672, 16475579353, 112925875764, 774003961940, 5305106018016, 36361727272627, 249227013404808, 1708227291909269, 11708364225400920, 80250321774226396, 550043889533755332, 3770056901455017263]

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

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