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A119695 as a simple table

na(n)
00
12
248
31800
447040
51323000
635126784
7937872936
824735110400
9651019271760
1017067389768000
11446585320669488
1211663935674273792
13304250554223980000
147927831278607968000
15206402082984558900000
165369988005412124953600

[0,2,48,1800,47040,1323000,35126784,937872936,
 24735110400,651019271760,17067389768000,
 446585320669488,11663935674273792,
 304250554223980000,7927831278607968000,
 206402082984558900000,5369988005412124953600]