A141255 - cp's OEIS frontend

A141255 Total number of line segments between points visible to each other in a square n X n lattice.

n	a(n)
1	0
2	6
3	28
4	86
5	200
6	418
7	748
8	1282
9	2040
10	3106
11	4492
12	6394
13	8744
14	11822
15	15556
16	20074
17	25456
18	32086
19	39724
20	48934
21	59456
22	71554
23	85252
24	101250
25	119040
26	139350
27	161932
28	187254
29	215136
30	246690
31	280916
32	319346
33	361328
34	407302
35	457180
36	511714
37	570232

[0, 6, 28, 86, 200, 418, 748, 1282, 2040, 3106, 4492, 6394, 8744, 11822, 15556, 20074, 25456, 32086, 39724, 48934, 59456, 71554, 85252, 101250, 119040, 139350, 161932, 187254, 215136, 246690, 280916, 319346, 361328, 407302, 457180, 511714, 570232]

cp's OEIS Frontend

A141255 Total number of line segments between points visible to each other in a square n X n lattice.

Table of values

List of values