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A046674 as a simple table

na(n)
11
218
3660
442000
54142880
6586776960
7113020427520
828432576972800
99056055981772800
103562946373482496000
111697172166720622592000
12962691052768668647424000
13641260394342965606809600000
14495681727573700350908825600000
15440084864982859007245221888000000

[1,18,660,42000,4142880,586776960,113020427520,
 28432576972800,9056055981772800,
 3562946373482496000,1697172166720622592000,
 962691052768668647424000,
 641260394342965606809600000,
 495681727573700350908825600000,
 440084864982859007245221888000000]