A334077 - cp's OEIS frontend

A334077 a(n) is the smallest positive integer that can be expressed as the difference of two positive triangular numbers in at least n ways.

n	a(n)
1	2
2	5
3	9
4	27
5	45
6	63
7	105
8	135
9	225
10	315
11	315
12	315
13	945
14	945
15	945
16	945
17	1575
18	1575
19	2835
20	2835
21	3465
22	3465
23	3465
24	3465
25	10395
26	10395
27	10395
28	10395
29	10395
30	10395
31	10395
32	10395
33	17325
34	17325
35	17325
36	17325
37	31185
38	31185
39	31185
40	31185
41	45045
42	45045
43	45045
44	45045

[2, 5, 9, 27, 45, 63, 105, 135, 225, 315, 315, 315, 945, 945, 945, 945, 1575, 1575, 2835, 2835, 3465, 3465, 3465, 3465, 10395, 10395, 10395, 10395, 10395, 10395, 10395, 10395, 17325, 17325, 17325, 17325, 31185, 31185, 31185, 31185, 45045, 45045, 45045, 45045]

cp's OEIS Frontend

A334077 a(n) is the smallest positive integer that can be expressed as the difference of two positive triangular numbers in at least n ways.

Table of values

List of values