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A223630 as a simple table

na(n)
17
2247
37504
4228401
56555965
6180713080
74777458798
8122344224851
93041708958520
1073824736436005
111754118644947248
1240935403480469124
13940380376523871886

[7,247,7504,228401,6555965,180713080,4777458798,
 122344224851,3041708958520,73824736436005,
 1754118644947248,40935403480469124,
 940380376523871886]