A105945 - OEIS

A105945 as a simple table

n	a(n)
1	1
2	11
3	12
4	22
5	111
6	113
7	121
8	122
9	123
10	133
11	222
12	223
13	323
14	333
15	1111
16	1114
17	1131
18	1133
19	1134
20	1144
21	1211
22	1214
23	1221
24	1222
25	1224
26	1231
27	1232
28	1233
29	1234
30	1244
31	1331
32	1333
33	1334
34	1414
35	1434
36	1444
37	2222
38	2224
39	2232
40	2233
41	2234
42	2244
43	3232
44	3233
45	3234
46	3333

[1,11,12,22,111,113,121,122,123,133,222,223,323, 333,1111,1114,1131,1133,1134,1144,1211,1214,1221, 1222,1224,1231,1232,1233,1234,1244,1331,1333,1334, 1414,1434,1444,2222,2224,2232,2233,2234,2244,3232, 3233,3234,3333]