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A128971 as a simple table

na(n)
01
12
22
35
44
54
610
710
88
98
1021
1120
1220
1316
1416
1542
1642
1740
1840
1932
2032
2185
2284
2384
2480
2580
2664
2764
28170
29170
30168
31168
32160
33160
34128

[1,2,2,5,4,4,10,10,8,8,21,20,20,16,16,42,42,40,40,
 32,32,85,84,84,80,80,64,64,170,170,168,168,160,
 160,128]