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.

A050471 a(n) = Sum_{d|n, n/d=1 mod 4} d^3 - Sum_{d|n, n/d=3 mod 4} d^3.

Table of values

n a(n)
1 1
2 8
3 26
4 64
5 126
6 208
7 342
8 512
9 703
10 1008
11 1330
12 1664
13 2198
14 2736
15 3276
16 4096
17 4914
18 5624
19 6858
20 8064
21 8892
22 10640
23 12166
24 13312
25 15751
26 17584
27 18980
28 21888
29 24390
30 26208
31 29790
32 32768
33 34580
34 39312
35 43092
36 44992
37 50654
38 54864
39 57148

List of values

[1, 8, 26, 64, 126, 208, 342, 512, 703, 1008, 1330, 1664, 2198, 2736, 3276, 4096, 4914, 5624, 6858, 8064, 8892, 10640, 12166, 13312, 15751, 17584, 18980, 21888, 24390, 26208, 29790, 32768, 34580, 39312, 43092, 44992, 50654, 54864, 57148]