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.

A333278 Triangle read by rows: T(n,m) (n >= m >= 1) = number of edges in the graph formed by drawing the line segments connecting any two of the (n+1) X (m+1) lattice points in an n X m grid of squares.

Table of values

n a(n)
1 8
2 28
3 92
4 80
5 296
6 872
7 178
8 652
9 1922
10 4344
11 372
12 1408
13 4256
14 9738
15 21284
16 654
17 2470
18 7466
19 16978
20 36922
21 64172
22 1124
23 4312
24 13112
25 29874
26 64800
27 113494
28 200028
29 1782
30 6774
31 20812
32 47402
33 103116
34 181484
35 319516
36 509584
37 2724
38 10428
39 31776
40 72398
41 158352
42 279070
43 490396
44 782096
45 1199428

List of values

[8, 28, 92, 80, 296, 872, 178, 652, 1922, 4344, 372, 1408, 4256, 9738, 21284, 654, 2470, 7466, 16978, 36922, 64172, 1124, 4312, 13112, 29874, 64800, 113494, 200028, 1782, 6774, 20812, 47402, 103116, 181484, 319516, 509584, 2724, 10428, 31776, 72398, 158352, 279070, 490396, 782096, 1199428]