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.

A333283 Triangle read by rows: T(m,n) (m >= n >= 1) = number of edges formed by drawing the line segments connecting any two of the (m+1) X (n+1) lattice points in an m X n grid of squares and extending them to the boundary of the grid.

Table of values

n a(n)
1 8
2 28
3 92
4 80
5 320
6 1028
7 178
8 716
9 2348
10 5512
11 372
12 1604
13 5332
14 12676
15 28552
16 654
17 2834
18 9404
19 22238
20 49928
21 87540
22 1124
23 5008
24 16696
25 39496
26 88540
27 156504
28 279100
29 1782
30 7874
31 26458
32 62818
33 141386
34 251136
35 447870

List of values

[8, 28, 92, 80, 320, 1028, 178, 716, 2348, 5512, 372, 1604, 5332, 12676, 28552, 654, 2834, 9404, 22238, 49928, 87540, 1124, 5008, 16696, 39496, 88540, 156504, 279100, 1782, 7874, 26458, 62818, 141386, 251136, 447870]