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A074489 as a simple table

na(n)
17
29409
3991026973
49892436613211441
59995500809927103280440951
6999898004334901741252806480882137569
79999937000170099744850229634875997137200865217031
89999991200003387999254640102486990981144496037064410263414358881

[7,9409,991026973,9892436613211441,
 9995500809927103280440951,
 999898004334901741252806480882137569,
 9999937000170099744850229634875997137200865217031,
 99999912000033879992546401024869909811444960370644\
 10263414358881]