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A291110 as a simple table

na(n)
00
10
20
30
46
5150
63240
771610
81692180
943296120
101202014800
1136144686160
121173334341960
1340964232699390
141532291272031520
1561185138170697450
162599160146594218480
17117091760635760465520
185577733223175044859840
19280195572152151651031200

[0,0,0,0,6,150,3240,71610,1692180,43296120,
 1202014800,36144686160,1173334341960,
 40964232699390,1532291272031520,61185138170697450,
 2599160146594218480,117091760635760465520,
 5577733223175044859840,280195572152151651031200]