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A290165 as a simple table

na(n)
10
21
33
425
570
63014
72968
863148
9197072
109446128
111232704
12135120416
13151939840
1447268893440

[0,1,3,25,70,3014,2968,63148,197072,9446128,
 1232704,135120416,151939840,47268893440]