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.

A264041 a(n) is the maximum number of diagonals that can be placed in an n X n grid made up of 1 X 1 unit squares when diagonals are placed in the unit squares in such a way that no two diagonals may cross or intersect at an endpoint.

Table of values

n a(n)
1 1
2 3
3 6
4 10
5 16
6 21
7 29
8 36
9 46
10 55
11 68
12 78
13 93
14 105
15 122
16 136
17 156
18 171
19 193
20 210
21 234
22 253
23 280
24 300
25 329
26 351
27 382
28 406
29 440
30 465
31 501
32 528

List of values

[1, 3, 6, 10, 16, 21, 29, 36, 46, 55, 68, 78, 93, 105, 122, 136, 156, 171, 193, 210, 234, 253, 280, 300, 329, 351, 382, 406, 440, 465, 501, 528]

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

Content is available under The OEIS End-User License Agreement.