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A239299 as a simple table

na(n)
01
11
24
327
4255
53028
641979
7647790
810803237
9191122140
103542732908
1168213661464
121355643940248
1327673150807344
14578051855658450
1512318499151821116
16267156147212406393
175884501351433388108
18131418738987996420708
192971588663914996425000

[1,1,4,27,255,3028,41979,647790,10803237,
 191122140,3542732908,68213661464,1355643940248,
 27673150807344,578051855658450,12318499151821116,
 267156147212406393,5884501351433388108,
 131418738987996420708,2971588663914996425000]