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A238693 as a simple table

na(n)
30
41
593
6571
716143
879333
91755225
10160251339
11705725473
1257691858003
131057609507815
144500326662525
1580662044522801
165995948088798691
17437230824840308493
181820340203482736875
19130228506669621162901
202230237339841166071433
219214275012380069727751

[0,1,93,571,16143,79333,1755225,160251339,
 705725473,57691858003,1057609507815,4500326662525,
 80662044522801,5995948088798691,
 437230824840308493,1820340203482736875,
 130228506669621162901,2230237339841166071433,
 9214275012380069727751]