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A119576 as a simple table

na(n)
00
16
284
3780
45880
539060
6238392
71369368
87516080
939819780
10205079160
111032047016
125094629904
1324743027400
14118504436400
15560749834800
162625519143520
1712179090862180
1856029885342200
19255864364648200

[0,6,84,780,5880,39060,238392,1369368,7516080,
 39819780,205079160,1032047016,5094629904,
 24743027400,118504436400,560749834800,
 2625519143520,12179090862180,56029885342200,
 255864364648200]