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A164812 as a simple table

na(n)
120
2-1
390
49
5-1
61090
7120
83020
919
1029
11220
1239
1349
1459
15119
16129
17409
18139
19149
20159
21329
22239
23249
24259
25359
26449
27459
281359
291449
301459
312359
322449
332459
343459
354449
364459

[20,-1,90,9,-1,1090,120,3020,19,29,220,39,49,59,
 119,129,409,139,149,159,329,239,249,259,359,449,
 459,1359,1449,1459,2359,2449,2459,3459,4449,4459]