A120261 - cp's OEIS frontend

A120261 Number of primitive triangles with integer sides a<=b<=c and inradius n; primitive means gcd(a, b, c) = 1.

n	a(n)
1	1
2	4
3	10
4	11
5	13
6	28
7	17
8	26
9	31
10	31
11	20
12	77
13	28
14	46
15	67
16	40
17	28
18	100
19	26
20	72
21	120
22	62
23	32
24	139
25	44
26	53
27	71
28	118
29	32
30	202
31	35
32	70
33	135
34	73
35	97
36	211
37	33
38	80
39	130
40	134
41	36
42	284
43	45
44	141
45	183
46	78
47	50
48	226
49	68
50	112
51	150
52	146
53	38
54	173
55	150
56	219
57	182
58	80
59	38
60	468
61	36
62	82

[1, 4, 10, 11, 13, 28, 17, 26, 31, 31, 20, 77, 28, 46, 67, 40, 28, 100, 26, 72, 120, 62, 32, 139, 44, 53, 71, 118, 32, 202, 35, 70, 135, 73, 97, 211, 33, 80, 130, 134, 36, 284, 45, 141, 183, 78, 50, 226, 68, 112, 150, 146, 38, 173, 150, 219, 182, 80, 38, 468, 36, 82]

cp's OEIS Frontend

A120261 Number of primitive triangles with integer sides a<=b<=c and inradius n; primitive means gcd(a, b, c) = 1.

Table of values

List of values

n	a(n)
1	1
2	4
3	10
4	11
5	13
6	28
7	17
8	26
9	31
10	31
11	20
12	77
13	28
14	46
15	67
16	40
17	28
18	100
19	26
20	72
21	120
22	62
23	32
24	139
25	44
26	53
27	71
28	118
29	32
30	202
31	35
32	70
33	135
34	73
35	97
36	211
37	33
38	80
39	130
40	134
41	36
42	284
43	45
44	141
45	183
46	78
47	50
48	226
49	68
50	112
51	150
52	146
53	38
54	173
55	150
56	219
57	182
58	80
59	38
60	468
61	36
62	82

n	a(n)
1	1
2	4
3	10
4	11
5	13
6	28
7	17
8	26
9	31
10	31
11	20
12	77
13	28
14	46
15	67
16	40
17	28
18	100
19	26
20	72
21	120
22	62
23	32
24	139
25	44
26	53
27	71
28	118
29	32
30	202
31	35
32	70
33	135
34	73
35	97
36	211
37	33
38	80
39	130
40	134
41	36
42	284
43	45
44	141
45	183
46	78
47	50
48	226
49	68
50	112
51	150
52	146
53	38
54	173
55	150
56	219
57	182
58	80
59	38
60	468
61	36
62	82

n	a(n)
1	1
2	4
3	10
4	11
5	13
6	28
7	17
8	26
9	31
10	31
11	20
12	77
13	28
14	46
15	67
16	40
17	28
18	100
19	26
20	72
21	120
22	62
23	32
24	139
25	44
26	53
27	71
28	118
29	32
30	202
31	35
32	70
33	135
34	73
35	97
36	211
37	33
38	80
39	130
40	134
41	36
42	284
43	45
44	141
45	183
46	78
47	50
48	226
49	68
50	112
51	150
52	146
53	38
54	173
55	150
56	219
57	182
58	80
59	38
60	468
61	36
62	82