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A231783 as a simple table

na(n)
155
25734
31339532
4290382196
562871566958
613609071705352
72945758167995030
8637625980627797115
9138017736261370390211
1029874716092788477314081
116466550462524073695152433
121399721246883859812052644377

[55,5734,1339532,290382196,62871566958,
 13609071705352,2945758167995030,
 637625980627797115,138017736261370390211,
 29874716092788477314081,6466550462524073695152433,
 1399721246883859812052644377]