A062099 - cp's OEIS frontend

A062099 Triangular numbers whose sum of digits is a triangular number.

n	a(n)
1	0
2	1
3	3
4	6
5	10
6	15
7	21
8	28
9	55
10	78
11	91
12	105
13	120
14	136
15	190
16	210
17	231
18	253
19	276
20	300
21	325
22	406
23	465
24	528
25	703
26	780
27	820
28	861
29	1081
30	1176
31	1225
32	1275
33	1540
34	1596
35	1653
36	1711
37	1770
38	2080
39	2211
40	2346
41	2701
42	2775
43	2850
44	3003
45	3160
46	3403
47	3486
48	3570
49	3741
50	3828

[0, 1, 3, 6, 10, 15, 21, 28, 55, 78, 91, 105, 120, 136, 190, 210, 231, 253, 276, 300, 325, 406, 465, 528, 703, 780, 820, 861, 1081, 1176, 1225, 1275, 1540, 1596, 1653, 1711, 1770, 2080, 2211, 2346, 2701, 2775, 2850, 3003, 3160, 3403, 3486, 3570, 3741, 3828]

cp's OEIS Frontend

A062099 Triangular numbers whose sum of digits is a triangular number.

Table of values

List of values