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A223422 as a simple table

na(n)
1416
218464
31033328
450097024
52844612736
6139114196992
77939011165696
8389154431528960
922244132907945984
101091144538683604992
1162401586754017968128
123061680318925083639808
13175122575873489263525888

[416,18464,1033328,50097024,2844612736,
 139114196992,7939011165696,389154431528960,
 22244132907945984,1091144538683604992,
 62401586754017968128,3061680318925083639808,
 175122575873489263525888]