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A072397 as a simple table

na(n)
12
221
38
46765
52584
6144
7832040
886267571272
946368
1014930352
1130960598847965113057878492344
124807526976
13160500643816367088
14498454011879264
1516641027750620563662096
1651680708854858323072
1734507973060837282187130139035400899082304280

[2,21,8,6765,2584,144,832040,86267571272,46368,
 14930352,30960598847965113057878492344,4807526976,
 160500643816367088,498454011879264,
 16641027750620563662096,51680708854858323072,
 34507973060837282187130139035400899082304280]