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A147780 as a simple table

na(n)
01
14
254
38422
4464862602
57134230598346156958
613246386641663595526163132113862494582602
7643152870463337226096381089442329605982736165294243832777767297119502149008481206286

[1,4,54,8422,464862602,7134230598346156958,
 13246386641663595526163132113862494582602,
 64315287046333722609638108944232960598273616529424\
 3832777767297119502149008481206286]