A043082 - OEIS

A043082 as a simple table

n	a(n)
1	1
2	4
3	31
4	32
5	33
6	34
7	35
8	36
9	37
10	38
11	39
12	40
13	301
14	312
15	323
16	334
17	345
18	356
19	367
20	378
21	389
22	400
23	3001
24	3011
25	3021
26	3031
27	3041
28	3051
29	3061
30	3071
31	3081
32	3091
33	3102
34	3112
35	3122
36	3132
37	3142
38	3152
39	3162
40	3172
41	3182
42	3192
43	3203
44	3213

[1,4,31,32,33,34,35,36,37,38,39,40,301,312,323, 334,345,356,367,378,389,400,3001,3011,3021,3031, 3041,3051,3061,3071,3081,3091,3102,3112,3122,3132, 3142,3152,3162,3172,3182,3192,3203,3213]