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A090309 as a simple table

na(n)
02
120
2402
38060
4161602
53240100
664963602
71302512140
826115206402
9523606640180
1010498248010002
11210488566840220
124220269584814402
1384615880263128260
141696537874847379602
1534015373377210720300

[2,20,402,8060,161602,3240100,64963602,1302512140,
 26115206402,523606640180,10498248010002,
 210488566840220,4220269584814402,
 84615880263128260,1696537874847379602,
 34015373377210720300]