A085782 - cp's OEIS frontend

A085782 Numbers that can be written as a product of triangular numbers.

n	a(n)
1	0
2	1
3	3
4	6
5	9
6	10
7	15
8	18
9	21
10	27
11	28
12	30
13	36
14	45
15	54
16	55
17	60
18	63
19	66
20	78
21	81
22	84
23	90
24	91
25	100
26	105
27	108
28	120
29	126
30	135
31	136
32	150
33	153
34	162
35	165
36	168
37	171
38	180
39	189
40	190
41	198
42	210
43	216
44	225
45	231
46	234
47	243
48	252
49	253
50	270
51	273
52	276
53	280
54	300
55	315
56	324
57	325
58	330
59	351

[0, 1, 3, 6, 9, 10, 15, 18, 21, 27, 28, 30, 36, 45, 54, 55, 60, 63, 66, 78, 81, 84, 90, 91, 100, 105, 108, 120, 126, 135, 136, 150, 153, 162, 165, 168, 171, 180, 189, 190, 198, 210, 216, 225, 231, 234, 243, 252, 253, 270, 273, 276, 280, 300, 315, 324, 325, 330, 351]

cp's OEIS Frontend

A085782 Numbers that can be written as a product of triangular numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	3
4	6
5	9
6	10
7	15
8	18
9	21
10	27
11	28
12	30
13	36
14	45
15	54
16	55
17	60
18	63
19	66
20	78
21	81
22	84
23	90
24	91
25	100
26	105
27	108
28	120
29	126
30	135
31	136
32	150
33	153
34	162
35	165
36	168
37	171
38	180
39	189
40	190
41	198
42	210
43	216
44	225
45	231
46	234
47	243
48	252
49	253
50	270
51	273
52	276
53	280
54	300
55	315
56	324
57	325
58	330
59	351

n	a(n)
1	0
2	1
3	3
4	6
5	9
6	10
7	15
8	18
9	21
10	27
11	28
12	30
13	36
14	45
15	54
16	55
17	60
18	63
19	66
20	78
21	81
22	84
23	90
24	91
25	100
26	105
27	108
28	120
29	126
30	135
31	136
32	150
33	153
34	162
35	165
36	168
37	171
38	180
39	189
40	190
41	198
42	210
43	216
44	225
45	231
46	234
47	243
48	252
49	253
50	270
51	273
52	276
53	280
54	300
55	315
56	324
57	325
58	330
59	351

n	a(n)
1	0
2	1
3	3
4	6
5	9
6	10
7	15
8	18
9	21
10	27
11	28
12	30
13	36
14	45
15	54
16	55
17	60
18	63
19	66
20	78
21	81
22	84
23	90
24	91
25	100
26	105
27	108
28	120
29	126
30	135
31	136
32	150
33	153
34	162
35	165
36	168
37	171
38	180
39	189
40	190
41	198
42	210
43	216
44	225
45	231
46	234
47	243
48	252
49	253
50	270
51	273
52	276
53	280
54	300
55	315
56	324
57	325
58	330
59	351