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A293004 as a simple table

na(n)
00
10
22
36
416
540
698
7238
8576
91392
103362
118118
1219600
1347320
14114242
15275806
16665856
171607520
183880898
199369318
2022619536
2154608392
22131836322
23318281038
24768398400
251855077840
264478554082
2710812186006
2826102926096
2963018038200
30152139002498

[0,0,2,6,16,40,98,238,576,1392,3362,8118,19600,
 47320,114242,275806,665856,1607520,3880898,
 9369318,22619536,54608392,131836322,318281038,
 768398400,1855077840,4478554082,10812186006,
 26102926096,63018038200,152139002498]