A119663 - cp's OEIS frontend

A119663 Triangular numbers with at most two distinct prime factors.

n	a(n)
1	1
2	3
3	6
4	10
5	15
6	21
7	28
8	36
9	45
10	55
11	91
12	136
13	153
14	171
15	253
16	325
17	351
18	496
19	703
20	1081
21	1225
22	1431
23	1711
24	1891
25	2701
26	3321
27	3403
28	4753
29	5671
30	7381
31	8128
32	12403
33	13203
34	13861
35	15931
36	18721
37	25651
38	29161
39	29403
40	31375
41	32896
42	34453
43	38503
44	49141

[1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 91, 136, 153, 171, 253, 325, 351, 496, 703, 1081, 1225, 1431, 1711, 1891, 2701, 3321, 3403, 4753, 5671, 7381, 8128, 12403, 13203, 13861, 15931, 18721, 25651, 29161, 29403, 31375, 32896, 34453, 38503, 49141]

cp's OEIS Frontend

A119663 Triangular numbers with at most two distinct prime factors.

Table of values

List of values