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.

A053819 a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^3.

Table of values

n a(n)
1 1
2 1
3 9
4 28
5 100
6 126
7 441
8 496
9 1053
10 1100
11 3025
12 1800
13 6084
14 4410
15 7200
16 8128
17 18496
18 8910
19 29241
20 16400
21 29106
22 27830
23 64009
24 27936
25 77500
26 54756
27 88209
28 67032
29 164836
30 52200
31 216225
32 130816
33 185130
34 161840
35 264600
36 140616
37 443556

List of values

[1, 1, 9, 28, 100, 126, 441, 496, 1053, 1100, 3025, 1800, 6084, 4410, 7200, 8128, 18496, 8910, 29241, 16400, 29106, 27830, 64009, 27936, 77500, 54756, 88209, 67032, 164836, 52200, 216225, 130816, 185130, 161840, 264600, 140616, 443556]