A071530 - cp's OEIS frontend

A071530 Numbers that are the sum of 3 triangular numbers in exactly 2 ways.

n	a(n)
1	3
2	6
3	7
4	9
5	10
6	13
7	15
8	17
9	18
10	19
11	23
12	24
13	25
14	26
15	32
16	33
17	35
18	38
19	41
20	44
21	47
22	54
23	60
24	62
25	68
26	69
27	74
28	80
29	83
30	89
31	95
32	99
33	110
34	113
35	119
36	128
37	179
38	194

[3, 6, 7, 9, 10, 13, 15, 17, 18, 19, 23, 24, 25, 26, 32, 33, 35, 38, 41, 44, 47, 54, 60, 62, 68, 69, 74, 80, 83, 89, 95, 99, 110, 113, 119, 128, 179, 194]

cp's OEIS Frontend

A071530 Numbers that are the sum of 3 triangular numbers in exactly 2 ways.

Table of values

List of values

n	a(n)
1	3
2	6
3	7
4	9
5	10
6	13
7	15
8	17
9	18
10	19
11	23
12	24
13	25
14	26
15	32
16	33
17	35
18	38
19	41
20	44
21	47
22	54
23	60
24	62
25	68
26	69
27	74
28	80
29	83
30	89
31	95
32	99
33	110
34	113
35	119
36	128
37	179
38	194

n	a(n)
1	3
2	6
3	7
4	9
5	10
6	13
7	15
8	17
9	18
10	19
11	23
12	24
13	25
14	26
15	32
16	33
17	35
18	38
19	41
20	44
21	47
22	54
23	60
24	62
25	68
26	69
27	74
28	80
29	83
30	89
31	95
32	99
33	110
34	113
35	119
36	128
37	179
38	194

n	a(n)
1	3
2	6
3	7
4	9
5	10
6	13
7	15
8	17
9	18
10	19
11	23
12	24
13	25
14	26
15	32
16	33
17	35
18	38
19	41
20	44
21	47
22	54
23	60
24	62
25	68
26	69
27	74
28	80
29	83
30	89
31	95
32	99
33	110
34	113
35	119
36	128
37	179
38	194