A072065 - cp's OEIS frontend

A072065 Define a "piece" to consist of 3 mutually touching pennies welded together to form a triangle; sequence gives side lengths of triangles that can be made from such pieces.

n	a(n)
1	0
2	2
3	9
4	11
5	12
6	14
7	21
8	23
9	24
10	26
11	33
12	35
13	36
14	38
15	45
16	47
17	48
18	50
19	57
20	59
21	60
22	62
23	69
24	71
25	72
26	74
27	81
28	83
29	84
30	86
31	93
32	95
33	96
34	98
35	105
36	107
37	108
38	110
39	117
40	119
41	120
42	122
43	129
44	131
45	132
46	134
47	141
48	143
49	144
50	146
51	153
52	155
53	156
54	158
55	165
56	167
57	168
58	170
59	177
60	179
61	180

[0, 2, 9, 11, 12, 14, 21, 23, 24, 26, 33, 35, 36, 38, 45, 47, 48, 50, 57, 59, 60, 62, 69, 71, 72, 74, 81, 83, 84, 86, 93, 95, 96, 98, 105, 107, 108, 110, 117, 119, 120, 122, 129, 131, 132, 134, 141, 143, 144, 146, 153, 155, 156, 158, 165, 167, 168, 170, 177, 179, 180]

cp's OEIS Frontend

A072065 Define a "piece" to consist of 3 mutually touching pennies welded together to form a triangle; sequence gives side lengths of triangles that can be made from such pieces.

Table of values

List of values

n	a(n)
1	0
2	2
3	9
4	11
5	12
6	14
7	21
8	23
9	24
10	26
11	33
12	35
13	36
14	38
15	45
16	47
17	48
18	50
19	57
20	59
21	60
22	62
23	69
24	71
25	72
26	74
27	81
28	83
29	84
30	86
31	93
32	95
33	96
34	98
35	105
36	107
37	108
38	110
39	117
40	119
41	120
42	122
43	129
44	131
45	132
46	134
47	141
48	143
49	144
50	146
51	153
52	155
53	156
54	158
55	165
56	167
57	168
58	170
59	177
60	179
61	180

n	a(n)
1	0
2	2
3	9
4	11
5	12
6	14
7	21
8	23
9	24
10	26
11	33
12	35
13	36
14	38
15	45
16	47
17	48
18	50
19	57
20	59
21	60
22	62
23	69
24	71
25	72
26	74
27	81
28	83
29	84
30	86
31	93
32	95
33	96
34	98
35	105
36	107
37	108
38	110
39	117
40	119
41	120
42	122
43	129
44	131
45	132
46	134
47	141
48	143
49	144
50	146
51	153
52	155
53	156
54	158
55	165
56	167
57	168
58	170
59	177
60	179
61	180

n	a(n)
1	0
2	2
3	9
4	11
5	12
6	14
7	21
8	23
9	24
10	26
11	33
12	35
13	36
14	38
15	45
16	47
17	48
18	50
19	57
20	59
21	60
22	62
23	69
24	71
25	72
26	74
27	81
28	83
29	84
30	86
31	93
32	95
33	96
34	98
35	105
36	107
37	108
38	110
39	117
40	119
41	120
42	122
43	129
44	131
45	132
46	134
47	141
48	143
49	144
50	146
51	153
52	155
53	156
54	158
55	165
56	167
57	168
58	170
59	177
60	179
61	180