A308147 - cp's OEIS frontend

A308147 Sum of the perimeters of all integer-sided isosceles triangles with perimeter n and prime side lengths.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	7
8	8
9	9
10	0
11	11
12	12
13	13
14	0
15	15
16	16
17	34
18	0
19	19
20	0
21	21
22	0
23	0
24	24
25	50
26	0
27	54
28	28
29	58
30	0
31	31
32	0
33	66
34	0
35	35
36	36
37	74
38	0
39	117
40	40
41	123
42	0
43	86
44	0
45	135
46	0
47	47
48	48
49	147
50	0
51	153
52	0
53	106
54	0
55	55
56	0
57	171
58	0
59	59
60	60
61	122
62	0
63	189
64	64
65	260
66	0
67	134
68	0
69	276
70	0

[0, 0, 0, 0, 0, 6, 7, 8, 9, 0, 11, 12, 13, 0, 15, 16, 34, 0, 19, 0, 21, 0, 0, 24, 50, 0, 54, 28, 58, 0, 31, 0, 66, 0, 35, 36, 74, 0, 117, 40, 123, 0, 86, 0, 135, 0, 47, 48, 147, 0, 153, 0, 106, 0, 55, 0, 171, 0, 59, 60, 122, 0, 189, 64, 260, 0, 134, 0, 276, 0]

cp's OEIS Frontend

A308147 Sum of the perimeters of all integer-sided isosceles triangles with perimeter n and prime side lengths.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	7
8	8
9	9
10	0
11	11
12	12
13	13
14	0
15	15
16	16
17	34
18	0
19	19
20	0
21	21
22	0
23	0
24	24
25	50
26	0
27	54
28	28
29	58
30	0
31	31
32	0
33	66
34	0
35	35
36	36
37	74
38	0
39	117
40	40
41	123
42	0
43	86
44	0
45	135
46	0
47	47
48	48
49	147
50	0
51	153
52	0
53	106
54	0
55	55
56	0
57	171
58	0
59	59
60	60
61	122
62	0
63	189
64	64
65	260
66	0
67	134
68	0
69	276
70	0

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	7
8	8
9	9
10	0
11	11
12	12
13	13
14	0
15	15
16	16
17	34
18	0
19	19
20	0
21	21
22	0
23	0
24	24
25	50
26	0
27	54
28	28
29	58
30	0
31	31
32	0
33	66
34	0
35	35
36	36
37	74
38	0
39	117
40	40
41	123
42	0
43	86
44	0
45	135
46	0
47	47
48	48
49	147
50	0
51	153
52	0
53	106
54	0
55	55
56	0
57	171
58	0
59	59
60	60
61	122
62	0
63	189
64	64
65	260
66	0
67	134
68	0
69	276
70	0

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	6
7	7
8	8
9	9
10	0
11	11
12	12
13	13
14	0
15	15
16	16
17	34
18	0
19	19
20	0
21	21
22	0
23	0
24	24
25	50
26	0
27	54
28	28
29	58
30	0
31	31
32	0
33	66
34	0
35	35
36	36
37	74
38	0
39	117
40	40
41	123
42	0
43	86
44	0
45	135
46	0
47	47
48	48
49	147
50	0
51	153
52	0
53	106
54	0
55	55
56	0
57	171
58	0
59	59
60	60
61	122
62	0
63	189
64	64
65	260
66	0
67	134
68	0
69	276
70	0