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A355409 as a simple table

na(n)
01
11
27
355
4571
57471
6117307
72148175
844958571
91058555791
1027693129307
11796934764495
1225018548004171
13850870651904911
1431163746960955707
151222922731101304015
1651189052318085027371
172276586205163067346831
18107204914362429152404507

[1,1,7,55,571,7471,117307,2148175,44958571,
 1058555791,27693129307,796934764495,
 25018548004171,850870651904911,31163746960955707,
 1222922731101304015,51189052318085027371,
 2276586205163067346831,107204914362429152404507]