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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.

A229339 GCD of all sums of n consecutive Lucas numbers.

Table of values

n a(n)
1 1
2 1
3 2
4 5
5 1
6 4
7 1
8 15
9 2
10 11
11 1
12 40
13 1
14 29
15 2
16 105
17 1
18 76
19 1
20 275
21 2
22 199
23 1
24 720
25 1
26 521
27 2
28 1885
29 1
30 1364
31 1
32 4935
33 2
34 3571
35 1
36 12920
37 1
38 9349
39 2
40 33825
41 1
42 24476
43 1
44 88555
45 2
46 64079
47 1
48 231840
49 1
50 167761
51 2
52 606965
53 1
54 439204
55 1
56 1589055
57 2
58 1149851
59 1
60 4160200
61 1
62 3010349
63 2

List of values

[1, 1, 2, 5, 1, 4, 1, 15, 2, 11, 1, 40, 1, 29, 2, 105, 1, 76, 1, 275, 2, 199, 1, 720, 1, 521, 2, 1885, 1, 1364, 1, 4935, 2, 3571, 1, 12920, 1, 9349, 2, 33825, 1, 24476, 1, 88555, 2, 64079, 1, 231840, 1, 167761, 2, 606965, 1, 439204, 1, 1589055, 2, 1149851, 1, 4160200, 1, 3010349, 2]