A386561 - cp's OEIS frontend

A386561 Place a point on the integer coordinates, up to |n|, along all four axial directions on a Cartesian plane, and then join an infinite straight line between every pair of points: a(n) is the number of finite edges created in the resulting graph.

n	a(n)
1	8
2	136
3	804
4	2608
5	6568
6	13396
7	26556
8	45120
9	73060
10	110984
11	171144
12	238900
13	344212
14	462788
15	607384
16	786476
17	1037772
18	1293904
19	1654432
20	2013768
21	2447312
22	2965392

[8, 136, 804, 2608, 6568, 13396, 26556, 45120, 73060, 110984, 171144, 238900, 344212, 462788, 607384, 786476, 1037772, 1293904, 1654432, 2013768, 2447312, 2965392]

cp's OEIS Frontend

A386561 Place a point on the integer coordinates, up to |n|, along all four axial directions on a Cartesian plane, and then join an infinite straight line between every pair of points: a(n) is the number of finite edges created in the resulting graph.

Table of values

List of values