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A297580 as a simple table

na(n)
19
293
3688
45263
547968
6395011
73230902
827481626
9229676841
101910165184
1116025802938
12134083375797
131119947127057
149371655819528
1578394858172957
16655469582914166
175482454528107606
1845855352909036892
19383489210777394048

[9,93,688,5263,47968,395011,3230902,27481626,
 229676841,1910165184,16025802938,134083375797,
 1119947127057,9371655819528,78394858172957,
 655469582914166,5482454528107606,
 45855352909036892,383489210777394048]