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A220215 as a simple table

na(n)
17
275
31220
416465
5218677
62902395
738572432
8512629581
96813162455
1090553069813
111203495068876
1215994772635395
13212573673194766

[7,75,1220,16465,218677,2902395,38572432,
 512629581,6813162455,90553069813,1203495068876,
 15994772635395,212573673194766]