A247587 - cp's OEIS frontend

A247587 Number of obtuse triangles with integer sides at most n.

n	a(n)
1	0
2	0
3	1
4	2
5	4
6	8
7	13
8	20
9	30
10	42
11	57
12	74
13	95
14	120
15	149
16	182
17	219
18	261
19	309
20	362
21	420
22	485
23	556
24	632
25	715
26	806
27	906
28	1012
29	1125
30	1247
31	1377
32	1517
33	1666
34	1824
35	1993
36	2170
37	2358
38	2555
39	2765
40	2986

[0, 0, 1, 2, 4, 8, 13, 20, 30, 42, 57, 74, 95, 120, 149, 182, 219, 261, 309, 362, 420, 485, 556, 632, 715, 806, 906, 1012, 1125, 1247, 1377, 1517, 1666, 1824, 1993, 2170, 2358, 2555, 2765, 2986]

cp's OEIS Frontend

A247587 Number of obtuse triangles with integer sides at most n.

Table of values

List of values