A225675 - cp's OEIS frontend

A225675 Numbers n such that triangular(n) is representable as p*w, where p is a prime number and w is a prime power (A025475).

n	a(n)
1	2
2	7
3	9
4	16
5	17
6	18
7	25
8	26
9	31
10	53
11	81
12	97
13	121
14	127
15	162
16	241
17	250
18	256
19	337
20	361
21	486
22	577
23	625
24	841
25	1249
26	1458
27	2186
28	2401
29	2662
30	3361
31	3481
32	3697
33	3721
34	4373
35	4801
36	5041
37	6241
38	6961
39	8191
40	10201
41	10657
42	13121
43	14641
44	17161
45	19321
46	23761
47	25537
48	28561
49	31249
50	32257

[2, 7, 9, 16, 17, 18, 25, 26, 31, 53, 81, 97, 121, 127, 162, 241, 250, 256, 337, 361, 486, 577, 625, 841, 1249, 1458, 2186, 2401, 2662, 3361, 3481, 3697, 3721, 4373, 4801, 5041, 6241, 6961, 8191, 10201, 10657, 13121, 14641, 17161, 19321, 23761, 25537, 28561, 31249, 32257]

cp's OEIS Frontend

A225675 Numbers n such that triangular(n) is representable as p*w, where p is a prime number and w is a prime power (A025475).

Table of values

List of values