A227054 - cp's OEIS frontend

A227054 a(n) = least triangular number t > 0 such that n*t is a triangular number, or 0 if no such t exists.

n	a(n)
1	1
2	3
3	1
4	0
5	3
6	1
7	3
8	15
9	0
10	1
11	6
12	3
13	6
14	15
15	1
16	0
17	78
18	21
19	10
20	6
21	1
22	3
23	45
24	190
25	0
26	3
27	55
28	1
29	15
30	10
31	15
32	28203
33	45
34	105
35	3
36	1
37	465
38	120
39	55
40	3
41	21
42	15
43	21
44	3570
45	1
46	6
47	210
48	861
49	0
50	6
51	3
52	15
53	105
54	21945
55	1
56	21
57	3
58	66
59	26565
60	91
61	276
62	378
63	6
64	0
65	1596
66	1
67	300

[1, 3, 1, 0, 3, 1, 3, 15, 0, 1, 6, 3, 6, 15, 1, 0, 78, 21, 10, 6, 1, 3, 45, 190, 0, 3, 55, 1, 15, 10, 15, 28203, 45, 105, 3, 1, 465, 120, 55, 3, 21, 15, 21, 3570, 1, 6, 210, 861, 0, 6, 3, 15, 105, 21945, 1, 21, 3, 66, 26565, 91, 276, 378, 6, 0, 1596, 1, 300]

cp's OEIS Frontend

A227054 a(n) = least triangular number t > 0 such that n*t is a triangular number, or 0 if no such t exists.

Table of values

List of values