A306991 - cp's OEIS frontend

A306991 Number of primitive Heronian isosceles triangles with perimeter A308222(n).

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	3
7	2
8	2
9	3
10	3
11	5
12	4
13	3
14	6
15	4
16	4
17	5
18	4
19	8
20	6
21	9
22	6
23	6
24	4
25	8
26	11
27	8
28	10
29	6
30	9
31	9
32	8
33	14
34	6
35	15
36	10
37	11
38	10
39	8
40	12
41	10
42	12
43	18
44	9
45	12
46	12
47	20
48	14
49	8
50	21
51	15
52	12
53	16
54	10
55	23
56	16
57	21
58	12
59	12
60	16
61	18
62	26
63	18
64	20
65	12
66	16
67	18
68	20
69	29
70	12
71	21
72	30

[1, 1, 1, 2, 2, 3, 2, 2, 3, 3, 5, 4, 3, 6, 4, 4, 5, 4, 8, 6, 9, 6, 6, 4, 8, 11, 8, 10, 6, 9, 9, 8, 14, 6, 15, 10, 11, 10, 8, 12, 10, 12, 18, 9, 12, 12, 20, 14, 8, 21, 15, 12, 16, 10, 23, 16, 21, 12, 12, 16, 18, 26, 18, 20, 12, 16, 18, 20, 29, 12, 21, 30]

cp's OEIS Frontend

A306991 Number of primitive Heronian isosceles triangles with perimeter A308222(n).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	3
7	2
8	2
9	3
10	3
11	5
12	4
13	3
14	6
15	4
16	4
17	5
18	4
19	8
20	6
21	9
22	6
23	6
24	4
25	8
26	11
27	8
28	10
29	6
30	9
31	9
32	8
33	14
34	6
35	15
36	10
37	11
38	10
39	8
40	12
41	10
42	12
43	18
44	9
45	12
46	12
47	20
48	14
49	8
50	21
51	15
52	12
53	16
54	10
55	23
56	16
57	21
58	12
59	12
60	16
61	18
62	26
63	18
64	20
65	12
66	16
67	18
68	20
69	29
70	12
71	21
72	30

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	3
7	2
8	2
9	3
10	3
11	5
12	4
13	3
14	6
15	4
16	4
17	5
18	4
19	8
20	6
21	9
22	6
23	6
24	4
25	8
26	11
27	8
28	10
29	6
30	9
31	9
32	8
33	14
34	6
35	15
36	10
37	11
38	10
39	8
40	12
41	10
42	12
43	18
44	9
45	12
46	12
47	20
48	14
49	8
50	21
51	15
52	12
53	16
54	10
55	23
56	16
57	21
58	12
59	12
60	16
61	18
62	26
63	18
64	20
65	12
66	16
67	18
68	20
69	29
70	12
71	21
72	30

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	3
7	2
8	2
9	3
10	3
11	5
12	4
13	3
14	6
15	4
16	4
17	5
18	4
19	8
20	6
21	9
22	6
23	6
24	4
25	8
26	11
27	8
28	10
29	6
30	9
31	9
32	8
33	14
34	6
35	15
36	10
37	11
38	10
39	8
40	12
41	10
42	12
43	18
44	9
45	12
46	12
47	20
48	14
49	8
50	21
51	15
52	12
53	16
54	10
55	23
56	16
57	21
58	12
59	12
60	16
61	18
62	26
63	18
64	20
65	12
66	16
67	18
68	20
69	29
70	12
71	21
72	30