A044020 - OEIS

A044020 as a simple table

n	a(n)
1	34
2	43
3	134
4	143
5	234
6	243
7	334
8	349
9	439
10	443
11	534
12	543
13	634
14	643
15	734
16	743
17	834
18	843
19	934
20	943
21	1034
22	1043
23	1134
24	1143
25	1234
26	1243
27	1334
28	1349
29	1439
30	1443
31	1534
32	1543
33	1634
34	1643
35	1734
36	1743
37	1834
38	1843
39	1934
40	1943
41	2034

[34,43,134,143,234,243,334,349,439,443,534,543, 634,643,734,743,834,843,934,943,1034,1043,1134, 1143,1234,1243,1334,1349,1439,1443,1534,1543,1634, 1643,1734,1743,1834,1843,1934,1943,2034]