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.

A349687 Numbers whose numerator and denominator of their abundancy index are both Fibonacci numbers.

Table of values

n a(n)
1 1
2 2
3 6
4 15
5 24
6 26
7 28
8 84
9 90
10 96
11 120
12 270
13 330
14 496
15 672
16 1335
17 1488
18 1540
19 1638
20 8128
21 24384
22 27280
23 44109
24 68200
25 131040
26 447040
27 523776
28 18506880
29 22256640
30 33550336
31 36197280
32 38257095
33 65688320
34 91963648
35 95472000
36 100651008
37 102136320
38 176432256
39 197308800

List of values

[1, 2, 6, 15, 24, 26, 28, 84, 90, 96, 120, 270, 330, 496, 672, 1335, 1488, 1540, 1638, 8128, 24384, 27280, 44109, 68200, 131040, 447040, 523776, 18506880, 22256640, 33550336, 36197280, 38257095, 65688320, 91963648, 95472000, 100651008, 102136320, 176432256, 197308800]

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

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