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A124403 as a simple table

na(n)
10
27
355
4493
55698
682199
71419759
828501115
9651233660
1016676686695
11472883843991
1214705395791305
13497538872883726
1418193397941038735
15714950006521386975
1630046260016074301943
171344648068888240941016

[0,7,55,493,5698,82199,1419759,28501115,651233660,
 16676686695,472883843991,14705395791305,
 497538872883726,18193397941038735,
 714950006521386975,30046260016074301943,
 1344648068888240941016]