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A042744 as a simple table

na(n)
030
1601
236090
3722401
443380150
5868325401
652142904210
71043726409601
862675727480270
91254558276015001
1075336172288380330
111507978004043621601
1290554016414905676390
131812588306302157149401
14108845852394544334640450

[30,601,36090,722401,43380150,868325401,
 52142904210,1043726409601,62675727480270,
 1254558276015001,75336172288380330,
 1507978004043621601,90554016414905676390,
 1812588306302157149401,108845852394544334640450]