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A053502 as a simple table

na(n)
01
11
22
36
424
596
6576
73312
821456
9152784
101237536
119984096
12133494912
131412107776
1416369357824
15206123325696
162866280276736
1736809077162752
18592066290710016
198800038127378944
20136876273991755776
212197453620220010496
2237915306084793106432

[1,1,2,6,24,96,576,3312,21456,152784,1237536,
 9984096,133494912,1412107776,16369357824,
 206123325696,2866280276736,36809077162752,
 592066290710016,8800038127378944,
 136876273991755776,2197453620220010496,
 37915306084793106432]