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A164811 as a simple table

na(n)
1-1
214
34
4-1
51014
61004
730
840
924
101030
1134
1244
1354
14140
15124
16404
17134
18144
19154
20324
21234
22244
23254
24354
25444
26454
271354
281444
291454
302354
312444
322454
333454
344444
354454

[-1,14,4,-1,1014,1004,30,40,24,1030,34,44,54,140,
 124,404,134,144,154,324,234,244,254,354,444,454,
 1354,1444,1454,2354,2444,2454,3454,4444,4454]