A240839 - OEIS

A240839 as a simple table

n	a(n)
1	23
2	103
3	293
4	503
5	823
6	883
7	953
8	983
9	1033
10	1163
11	1213
12	1223
13	1433
14	1453
15	1493
16	1523
17	1723
18	1733
19	1933
20	1993
21	2113
22	2203
23	2803
24	2833
25	2903
26	3023
27	3203
28	3343
29	3433
30	3733
31	3823
32	3833
33	4003
34	4243
35	4373
36	4483
37	4513
38	4733
39	4813
40	4903
41	4943
42	4993
43	5333
44	5503
45	5743
46	6143
47	6343
48	6833
49	7013

[23,103,293,503,823,883,953,983,1033,1163,1213, 1223,1433,1453,1493,1523,1723,1733,1933,1993,2113, 2203,2803,2833,2903,3023,3203,3343,3433,3733,3823, 3833,4003,4243,4373,4483,4513,4733,4813,4903,4943, 4993,5333,5503,5743,6143,6343,6833,7013]