A068804 - cp's OEIS frontend

A068804 Triangular numbers whose digits can be rearranged to form a substring of 123456789012345678901234....

n	a(n)
1	0
2	1
3	3
4	6
5	10
6	21
7	45
8	78
9	120
10	190
11	210
12	231
13	435
14	465
15	9180
16	9870
17	12403
18	24310
19	24531
20	47586
21	109278
22	231540
23	235641
24	246753
25	327645
26	541320
27	542361
28	921403
29	1053426
30	1345620
31	1360425
32	1390278
33	1405326
34	1624503
35	1679028
36	2098176
37	2465310
38	2467531
39	3049215
40	3078921

[0, 1, 3, 6, 10, 21, 45, 78, 120, 190, 210, 231, 435, 465, 9180, 9870, 12403, 24310, 24531, 47586, 109278, 231540, 235641, 246753, 327645, 541320, 542361, 921403, 1053426, 1345620, 1360425, 1390278, 1405326, 1624503, 1679028, 2098176, 2465310, 2467531, 3049215, 3078921]

cp's OEIS Frontend

A068804 Triangular numbers whose digits can be rearranged to form a substring of 123456789012345678901234....

Table of values

List of values