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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.

A203848 a(n) = sigma(n)*Fibonacci(n), where sigma(n) = A000203(n), the sum of divisors of n.

Table of values

n a(n)
1 1
2 3
3 8
4 21
5 30
6 96
7 104
8 315
9 442
10 990
11 1068
12 4032
13 3262
14 9048
15 14640
16 30597
17 28746
18 100776
19 83620
20 284130
21 350272
22 637596
23 687768
24 2782080
25 2325775
26 5098506
27 7856720
28 17797416
29 15426870
30 59906880
31 43080608
32 137233467
33 169179744
34 307955898
35 442918320
36 1358662032

List of values

[1, 3, 8, 21, 30, 96, 104, 315, 442, 990, 1068, 4032, 3262, 9048, 14640, 30597, 28746, 100776, 83620, 284130, 350272, 637596, 687768, 2782080, 2325775, 5098506, 7856720, 17797416, 15426870, 59906880, 43080608, 137233467, 169179744, 307955898, 442918320, 1358662032]

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

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