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A067228 as a simple table

na(n)
11
22
32
44
52
612
72
830
944
1086
112
121190
132
14860
1512014
1626886
172
18184758
192
203359202
212771342
22117574
232
24327618902
25701149022
261485802
27828630662
2827350160662
292
30808310933492
312
322979826568702
33291724349282
34259289582
35557214344578322
362031957220875002
372

[1,2,2,4,2,12,2,30,44,86,2,1190,2,860,12014,26886,
 2,184758,2,3359202,2771342,117574,2,327618902,
 701149022,1485802,828630662,27350160662,2,
 808310933492,2,2979826568702,291724349282,
 259289582,557214344578322,2031957220875002,2]