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.

A350163 a(n) = Sum_{k=1..n} (-1)^(k+1) * floor(n/(2*k-1))^3.

Table of values

n a(n)
1 1
2 8
3 26
4 63
5 125
6 209
7 335
8 504
9 703
10 981
11 1311
12 1671
13 2141
14 2681
15 3269
16 3990
17 4808
18 5643
19 6669
20 7847
21 8963
22 10343
23 11861
24 13349
25 15212
26 17170
27 19078
28 21310
29 23748
30 26172
31 28962
32 31939
33 34759
34 38133
35 41769
36 45190
37 49188
38 53400
39 57396
40 62246
41 67168
42 71704
43 77122

List of values

[1, 8, 26, 63, 125, 209, 335, 504, 703, 981, 1311, 1671, 2141, 2681, 3269, 3990, 4808, 5643, 6669, 7847, 8963, 10343, 11861, 13349, 15212, 17170, 19078, 21310, 23748, 26172, 28962, 31939, 34759, 38133, 41769, 45190, 49188, 53400, 57396, 62246, 67168, 71704, 77122]