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.

A333284 Triangle read by rows: T(m,n) (m >= n >= 1) = number of vertices 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 5
2 13
3 37
4 35
5 129
6 405
7 75
8 289
9 933
10 2225
11 159
12 663
13 2155
14 5157
15 11641
16 275
17 1163
18 3793
19 9051
20 20341
21 35677
22 477
23 2069
24 6771
25 16129
26 36173
27 63987
28 114409
29 755
30 3251
31 10727
32 25635
33 57759
34 102845
35 183961

List of values

[5, 13, 37, 35, 129, 405, 75, 289, 933, 2225, 159, 663, 2155, 5157, 11641, 275, 1163, 3793, 9051, 20341, 35677, 477, 2069, 6771, 16129, 36173, 63987, 114409, 755, 3251, 10727, 25635, 57759, 102845, 183961]