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.

A074789 Partial sums of usigma(n)^2: square of the sum of unitary divisors of n.

Table of values

n a(n)
1 1
2 10
3 26
4 51
5 87
6 231
7 295
8 376
9 476
10 800
11 944
12 1344
13 1540
14 2116
15 2692
16 2981
17 3305
18 4205
19 4605
20 5505
21 6529
22 7825
23 8401
24 9697
25 10373
26 12137
27 12921
28 14521
29 15421
30 20605
31 21629
32 22718
33 25022
34 27938
35 30242
36 32742
37 34186
38 37786
39 40922
40 43838

List of values

[1, 10, 26, 51, 87, 231, 295, 376, 476, 800, 944, 1344, 1540, 2116, 2692, 2981, 3305, 4205, 4605, 5505, 6529, 7825, 8401, 9697, 10373, 12137, 12921, 14521, 15421, 20605, 21629, 22718, 25022, 27938, 30242, 32742, 34186, 37786, 40922, 43838]

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

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