A331765 - cp's OEIS frontend

A331765 Number of edges formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares).

n	a(n)
1	28
2	92
3	240
4	508
5	944
6	1548
7	2520
8	3754
9	5392
10	7528
11	10296
12	13570
13	17844
14	22768
15	28584
16	35704
17	44048
18	53380
19	64728
20	77292
21	91500
22	107828
23	126408
24	146772
25	170080
26	195580
27	223764
28	255010
29	289792
30	326996
31	369320
32	414908
33	463880
34	517724
35	575404
36	637530
37	706172

[28, 92, 240, 508, 944, 1548, 2520, 3754, 5392, 7528, 10296, 13570, 17844, 22768, 28584, 35704, 44048, 53380, 64728, 77292, 91500, 107828, 126408, 146772, 170080, 195580, 223764, 255010, 289792, 326996, 369320, 414908, 463880, 517724, 575404, 637530, 706172]

cp's OEIS Frontend

A331765 Number of edges formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares).

Table of values

List of values