A358465 - cp's OEIS frontend

A358465 Least area (doubled) of a triangle enclosing a circle of radius n such that the center of the circle and the vertices of the triangle all have integer coordinates.

n	a(n)
1	12
2	45
3	96
4	168
5	269
6	380
7	520
8	670
9	861
10	1044
11	1274
12	1508
13	1760
14	2050
15	2340
16	2680
17	3016
18	3383
19	3762
20	4176
21	4588
22	5052
23	5511
24	6000
25	6512
26	7040
27	7584
28	8160
29	8758
30	9360
31	10010
32	10659
33	11352
34	12036
35	12753
36	13482
37	14238
38	15032
39	15812
40	16640
41	17500
42	18352
43	19240
44	20153
45	21060

[12, 45, 96, 168, 269, 380, 520, 670, 861, 1044, 1274, 1508, 1760, 2050, 2340, 2680, 3016, 3383, 3762, 4176, 4588, 5052, 5511, 6000, 6512, 7040, 7584, 8160, 8758, 9360, 10010, 10659, 11352, 12036, 12753, 13482, 14238, 15032, 15812, 16640, 17500, 18352, 19240, 20153, 21060]

cp's OEIS Frontend

A358465 Least area (doubled) of a triangle enclosing a circle of radius n such that the center of the circle and the vertices of the triangle all have integer coordinates.

Table of values

List of values