A075809 - OEIS

A075809 as a simple table

n	a(n)
1	2
2	66
3	222
4	282
5	434
6	474
7	494
8	606
9	646
10	2222
11	2882
12	4334
13	4994
14	6006
15	6226
16	6446
17	6886
18	8338
19	8558
20	8778
21	8998
22	20002
23	20202
24	20702
25	20802
26	20902
27	22222
28	22922
29	24042
30	24342
31	24542
32	24742
33	24942
34	26062
35	26162
36	26462
37	28082
38	28182
39	28282

[2,66,222,282,434,474,494,606,646,2222,2882,4334, 4994,6006,6226,6446,6886,8338,8558,8778,8998, 20002,20202,20702,20802,20902,22222,22922,24042, 24342,24542,24742,24942,26062,26162,26462,28082, 28182,28282]