A068882 - cp's OEIS frontend

A068882 Triangular numbers with property that digits alternate in parity.

n	a(n)
1	1
2	3
3	6
4	10
5	21
6	36
7	45
8	78
9	105
10	210
11	276
12	325
13	496
14	561
15	630
16	703
17	741
18	903
19	1830
20	2145
21	2701
22	5050
23	6105
24	6903
25	8385
26	9870
27	10585
28	12561
29	14365
30	18145
31	18721
32	23436
33	25878
34	29890
35	30381
36	32385
37	36585
38	38503
39	38781
40	41616
41	47278
42	50721

[1, 3, 6, 10, 21, 36, 45, 78, 105, 210, 276, 325, 496, 561, 630, 703, 741, 903, 1830, 2145, 2701, 5050, 6105, 6903, 8385, 9870, 10585, 12561, 14365, 18145, 18721, 23436, 25878, 29890, 30381, 32385, 36585, 38503, 38781, 41616, 47278, 50721]

cp's OEIS Frontend

A068882 Triangular numbers with property that digits alternate in parity.

Table of values

List of values