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A284744 as a simple table

na(n)
1902
21000402
34000102
45000102
55000702
66000902
77000002
8104000102
9105000102
10105000902
11106000602
12109000002
13401000002
14405000402
15405000702
16405000902
17406000602
18407000502
19500000102
20500000402

[902,1000402,4000102,5000102,5000702,6000902,
 7000002,104000102,105000102,105000902,106000602,
 109000002,401000002,405000402,405000702,405000902,
 406000602,407000502,500000102,500000402]