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.

A121709 Numerator of Sum/Product of first n Lucas numbers A000032[n].

Table of values

n a(n)
1 1
2 4
3 2
4 5
5 13
6 1
7 73
8 5
9 7
10 1
11 37
12 5
13 1361
14 1
15 223
16 25
17 4673
18 1
19 24473
20 25
21 16019
22 1
23 83879
24 65
25 62743
26 1
27 20533
28 65
29 1505173
30 1
31 7881193
32 85
33 5158309
34 1
35 27009259
36 425
37 1400221
38 1
39 1446283
40 2225
41 69237359
42 1
43 51790217
44 445
45 1660959719
46 1
47 8696897999

List of values

[1, 4, 2, 5, 13, 1, 73, 5, 7, 1, 37, 5, 1361, 1, 223, 25, 4673, 1, 24473, 25, 16019, 1, 83879, 65, 62743, 1, 20533, 65, 1505173, 1, 7881193, 85, 5158309, 1, 27009259, 425, 1400221, 1, 1446283, 2225, 69237359, 1, 51790217, 445, 1660959719, 1, 8696897999]