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A167444 as a simple table

na(n)
11
21
32
43
515
6384
7135135
813749310575
946620662575398912000
108687364368561751199826958100282265625
11352999527454840466971061863960307904899505075341088595453568994140625

[1,1,2,3,15,384,135135,13749310575,
 46620662575398912000,
 8687364368561751199826958100282265625,
 35299952745484046697106186396030790489950507534108\
 8595453568994140625]