A028492 - cp's OEIS frontend

A028492 Similarity classes of triangles which can be drawn using the lattice points in an n X n grid for vertices.

n	a(n)
0	0
1	1
2	6
3	20
4	55
5	119
6	229
7	402
8	667
9	1019
10	1536
11	2216
12	3049
13	4168
14	5546
15	7203
16	9278
17	11755
18	14597
19	18054
20	22138
21	26625
22	31958
23	38120
24	44821
25	52764
26	61663
27	71204
28	82250
29	94479
30	107680
31	122740
32	139224
33	156699
34	176450
35	198176
36	220883

[0, 1, 6, 20, 55, 119, 229, 402, 667, 1019, 1536, 2216, 3049, 4168, 5546, 7203, 9278, 11755, 14597, 18054, 22138, 26625, 31958, 38120, 44821, 52764, 61663, 71204, 82250, 94479, 107680, 122740, 139224, 156699, 176450, 198176, 220883]

cp's OEIS Frontend

A028492 Similarity classes of triangles which can be drawn using the lattice points in an n X n grid for vertices.

Table of values

List of values