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A150033 as a simple table

na(n)
01
12
26
317
456
5187
6647
72283
88183
929742
10109129
11403667
121504455
135637671
1421235076
1580333014
16305030726
171162135296
184440424269
1917010967118
2065320831670
21251350805303
22969033651846
233742365310049
2414475611770191
2556073194209612
26217494453475571
27844640587355439
283283870660839249

[1,2,6,17,56,187,647,2283,8183,29742,109129,
 403667,1504455,5637671,21235076,80333014,
 305030726,1162135296,4440424269,17010967118,
 65320831670,251350805303,969033651846,
 3742365310049,14475611770191,56073194209612,
 217494453475571,844640587355439,3283870660839249]