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.

A374106 a(n) = gcd(A113177(n), A328845(n)), where A113177 is fully additive with a(p) = Fibonacci(p) and A328845 is the first Fibonacci-based variant of the arithmetic derivative.

Table of values

n a(n)
1 0
2 1
3 2
4 2
5 5
6 1
7 13
8 3
9 4
10 3
11 89
12 4
13 233
14 1
15 1
16 4
17 1597
18 1
19 4181
20 1
21 1
22 9
23 28657
24 1
25 10
26 1
27 6
28 5
29 514229
30 1
31 1346269
32 5
33 1
34 1
35 2
36 6
37 24157817
38 17
39 5
40 4
41 165580141
42 1
43 433494437
44 1
45 3
46 7
47 2971215073
48 2
49 26
50 1
51 1
52 1
53 53316291173
54 1
55 2
56 4
57 1
58 3
59 956722026041
60 1
61 2504730781961
62 1
63 1
64 6
65 2
66 1
67 44945570212853
68 3
69 1
70 1

List of values

[0, 1, 2, 2, 5, 1, 13, 3, 4, 3, 89, 4, 233, 1, 1, 4, 1597, 1, 4181, 1, 1, 9, 28657, 1, 10, 1, 6, 5, 514229, 1, 1346269, 5, 1, 1, 2, 6, 24157817, 17, 5, 4, 165580141, 1, 433494437, 1, 3, 7, 2971215073, 2, 26, 1, 1, 1, 53316291173, 1, 2, 4, 1, 3, 956722026041, 1, 2504730781961, 1, 1, 6, 2, 1, 44945570212853, 3, 1, 1]