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.

A330851 The number of edges inside a cross with width 3 and height n (see Comments in A331455 for definition) formed by the straight line segments mutually connecting all vertices and all points.

Table of values

n a(n)
2 108
3 172
4 294
5 522
6 848
7 1352
8 2046
9 3032
10 4260
11 5958
12 8048
13 10806
14 14082
15 18070
16 22778
17 28646
18 35314
19 43436
20 52676
21 63370
22 75290
23 89330
24 104908
25 122816
26 142476
27 164644
28 188954
29 216686
30 246584
31 280386
32 317186
33 357658
34 401138
35 448884
36 500014
37 556706
38 617160

List of values

[108, 172, 294, 522, 848, 1352, 2046, 3032, 4260, 5958, 8048, 10806, 14082, 18070, 22778, 28646, 35314, 43436, 52676, 63370, 75290, 89330, 104908, 122816, 142476, 164644, 188954, 216686, 246584, 280386, 317186, 357658, 401138, 448884, 500014, 556706, 617160]

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

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