A308318 - cp's OEIS frontend

A308318 Number of integer-sided triangles with perimeter n and at least one nonprime side length.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	2
10	2
11	3
12	2
13	4
14	4
15	5
16	4
17	6
18	7
19	9
20	8
21	11
22	10
23	13
24	11
25	14
26	14
27	16
28	15
29	18
30	19
31	22
32	21
33	25
34	24
35	27
36	26
37	30
38	30
39	32
40	32
41	35
42	37
43	40
44	40
45	45
46	44
47	47
48	47
49	51
50	52
51	57
52	56
53	61
54	61
55	68
56	65
57	72
58	70
59	75
60	74
61	82
62	80
63	85
64	84
65	88
66	91
67	97
68	96
69	103

[0, 0, 1, 0, 1, 0, 1, 0, 2, 2, 3, 2, 4, 4, 5, 4, 6, 7, 9, 8, 11, 10, 13, 11, 14, 14, 16, 15, 18, 19, 22, 21, 25, 24, 27, 26, 30, 30, 32, 32, 35, 37, 40, 40, 45, 44, 47, 47, 51, 52, 57, 56, 61, 61, 68, 65, 72, 70, 75, 74, 82, 80, 85, 84, 88, 91, 97, 96, 103]

cp's OEIS Frontend

A308318 Number of integer-sided triangles with perimeter n and at least one nonprime side length.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	2
10	2
11	3
12	2
13	4
14	4
15	5
16	4
17	6
18	7
19	9
20	8
21	11
22	10
23	13
24	11
25	14
26	14
27	16
28	15
29	18
30	19
31	22
32	21
33	25
34	24
35	27
36	26
37	30
38	30
39	32
40	32
41	35
42	37
43	40
44	40
45	45
46	44
47	47
48	47
49	51
50	52
51	57
52	56
53	61
54	61
55	68
56	65
57	72
58	70
59	75
60	74
61	82
62	80
63	85
64	84
65	88
66	91
67	97
68	96
69	103

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	2
10	2
11	3
12	2
13	4
14	4
15	5
16	4
17	6
18	7
19	9
20	8
21	11
22	10
23	13
24	11
25	14
26	14
27	16
28	15
29	18
30	19
31	22
32	21
33	25
34	24
35	27
36	26
37	30
38	30
39	32
40	32
41	35
42	37
43	40
44	40
45	45
46	44
47	47
48	47
49	51
50	52
51	57
52	56
53	61
54	61
55	68
56	65
57	72
58	70
59	75
60	74
61	82
62	80
63	85
64	84
65	88
66	91
67	97
68	96
69	103

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	0
7	1
8	0
9	2
10	2
11	3
12	2
13	4
14	4
15	5
16	4
17	6
18	7
19	9
20	8
21	11
22	10
23	13
24	11
25	14
26	14
27	16
28	15
29	18
30	19
31	22
32	21
33	25
34	24
35	27
36	26
37	30
38	30
39	32
40	32
41	35
42	37
43	40
44	40
45	45
46	44
47	47
48	47
49	51
50	52
51	57
52	56
53	61
54	61
55	68
56	65
57	72
58	70
59	75
60	74
61	82
62	80
63	85
64	84
65	88
66	91
67	97
68	96
69	103