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A283048 as a simple table

na(n)
01
1720
23246670537110000
3101097362223624462291180422369532000000
411820969246826954556547676599863670334721199951925900837836206749590000

[1,720,3246670537110000,
 101097362223624462291180422369532000000,
 11820969246826954556547676599863670334721199951925\
 900837836206749590000]