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A239410 as a simple table

na(n)
1156
220818
32590704
4326882784
540566958960
65072216819342
7630657074443394
878666433617260802
99791612259389470778
101220385596630190836830
11151973853622892194440357
1218935435888110044394225594

[156,20818,2590704,326882784,40566958960,
 5072216819342,630657074443394,78666433617260802,
 9791612259389470778,1220385596630190836830,
 151973853622892194440357,
 18935435888110044394225594]