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A163276 as a simple table

na(n)
00
12
2288
35832
451200
5281250
61143072
73764768
810616832
926572050
1060500000
11127552392
12252315648
13473027282
14847072800
151458000000
162424307712
173910286178
186139206432
199409176200
2014112000000
2120755401282
2229988984608

[0,2,288,5832,51200,281250,1143072,3764768,
 10616832,26572050,60500000,127552392,252315648,
 473027282,847072800,1458000000,2424307712,
 3910286178,6139206432,9409176200,14112000000,
 20755401282,29988984608]