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A240931 as a simple table

na(n)
00
10
2128
34374
449152
5312500
61399680
74941258
814680064
938263752
1090000000
11194871710
12394149888
13752982204
141370375552
152392031250
164026531840
176565418768
1810407740544
1916089691302
2024320000000
2136021770820
2252381515648
2374906159834
24105488842752
25146484375000

[0,0,128,4374,49152,312500,1399680,4941258,
 14680064,38263752,90000000,194871710,394149888,
 752982204,1370375552,2392031250,4026531840,
 6565418768,10407740544,16089691302,24320000000,
 36021770820,52381515648,74906159834,105488842752,
 146484375000]