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A270557 as a simple table

na(n)
12
22
32
46
535
61828
787102089
89369260399911997
979759690931475868535017424372273
106278545782421133501164266118042557416295332543123744442037840298

[2,2,2,6,35,1828,87102089,9369260399911997,
 79759690931475868535017424372273,
 62785457824211335011642661180425574162953325431237\
 44442037840298]