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A294974 as a simple table

na(n)
01
1-42
24032
3-659904
4118064226
5-22406634432
64407587356032
7-888750999070464
8182478248639753472
9-37986867560948245674
107994272624037726124672
11-1697243410477799687716416
12362963150140702802158191360
13-78095916585903527021840348352

[1,-42,4032,-659904,118064226,-22406634432,
 4407587356032,-888750999070464,182478248639753472,
 -37986867560948245674,7994272624037726124672,
 -1697243410477799687716416,
 362963150140702802158191360,
 -78095916585903527021840348352]