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.

A335350 a(n) is the number of regions formed in a square by dividing each of its sides into n equal parts giving a total of 4*n nodes and drawing straight line segments from node k to node (k+n+1) mod 4*n, 0 <= k < 4*n.

Table of values

n a(n)
1 4
2 25
3 37
4 81
5 109
6 169
7 205
8 289
9 341
10 441
11 485
12 625
13 701
14 825
15 913
16 1089
17 1189
18 1369
19 1461
20 1661
21 1805
22 2025
23 2141
24 2389
25 2549
26 2809
27 2929
28 3249
29 3405
30 3721
31 3901
32 4205
33 4421
34 4753
35 4913
36 5329
37 5549
38 5913
39 6105
40 6561
41 6781
42 7225
43 7453
44 7885
45 8189
46 8649

List of values

[4, 25, 37, 81, 109, 169, 205, 289, 341, 441, 485, 625, 701, 825, 913, 1089, 1189, 1369, 1461, 1661, 1805, 2025, 2141, 2389, 2549, 2809, 2929, 3249, 3405, 3721, 3901, 4205, 4421, 4753, 4913, 5329, 5549, 5913, 6105, 6561, 6781, 7225, 7453, 7885, 8189, 8649]