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A277877 as a simple table

na(n)
10
230
3608
48740
5109296
61269450
714096320
8151927776
91603346160
1016659866938
11171064877280

[0,30,608,8740,109296,1269450,14096320,151927776,
 1603346160,16659866938,171064877280]