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A223553 as a simple table

na(n)
181
26939
3609309
453599905
54715559621
6414863325945
736498667573629
83211064180380305
9282501632829717621
1024853807982558115945
112186577702401491603629
12192369799106697718450305

[81,6939,609309,53599905,4715559621,414863325945,
 36498667573629,3211064180380305,
 282501632829717621,24853807982558115945,
 2186577702401491603629,192369799106697718450305]