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A097142 as a simple table

na(n)
13
216
3112
4818
56367
652299
7442972
83840740
933898001
10303369367
112745366812
1225071938615

[3,16,112,818,6367,52299,442972,3840740,33898001,
 303369367,2745366812,25071938615]