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A224251 as a simple table

na(n)
18
213
318
423
548
673
798
8123
9248
10373
11498
12623
131248
141873
152498
163123
176248
189373
1912498
2015623
2131248
2246873
2362498
2478123
25156248
26234373
27312498
28390623
29781248
301171873
311562498
321953123
333906248
345859373
357812498
369765623
3719531248
3829296873

[8,13,18,23,48,73,98,123,248,373,498,623,1248,
 1873,2498,3123,6248,9373,12498,15623,31248,46873,
 62498,78123,156248,234373,312498,390623,781248,
 1171873,1562498,1953123,3906248,5859373,7812498,
 9765623,19531248,29296873]