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.

A280689 a(n) = A000045(A032742(n)) / A000045(A054576(n)), where A000045(n) gives the n-th Fibonacci number, A032742(n) = the largest proper divisor of n, and A054576(n) = A032742(A032742(n)).

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 2
7 1
8 3
9 2
10 5
11 1
12 4
13 1
14 13
15 5
16 7
17 1
18 17
19 1
20 11
21 13
22 89
23 1
24 18
25 5
26 233
27 17
28 29
29 1
30 122
31 1
32 47
33 89
34 1597
35 13
36 76
37 1
38 4181
39 233
40 123
41 1
42 842
43 1
44 199
45 122
46 28657
47 1
48 322
49 13
50 15005
51 1597
52 521
53 1
54 5777
55 89
56 843
57 4181
58 514229
59 1
60 1364
61 1
62 1346269
63 842
64 2207
65 233
66 39602
67 1
68 3571
69 28657
70 709805
71 1
72 5778
73 1
74 24157817
75 15005
76 9349
77 89
78 271442
79 1
80 15127
81 5777

List of values

[1, 1, 1, 1, 1, 2, 1, 3, 2, 5, 1, 4, 1, 13, 5, 7, 1, 17, 1, 11, 13, 89, 1, 18, 5, 233, 17, 29, 1, 122, 1, 47, 89, 1597, 13, 76, 1, 4181, 233, 123, 1, 842, 1, 199, 122, 28657, 1, 322, 13, 15005, 1597, 521, 1, 5777, 89, 843, 4181, 514229, 1, 1364, 1, 1346269, 842, 2207, 233, 39602, 1, 3571, 28657, 709805, 1, 5778, 1, 24157817, 15005, 9349, 89, 271442, 1, 15127, 5777]