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A160107 as a simple table

na(n)
01
114
2-1262
3-58492
44701100
5406940744
6-28573848584
7-3959951508688
8236185377526672
949495469682710240
10-2406287948347046624
11-755331979250773951936
1228017398406079098428608
1313607531886656648441072768
14-340536322975630153440817280

[1,14,-1262,-58492,4701100,406940744,-28573848584,
 -3959951508688,236185377526672,49495469682710240,
 -2406287948347046624,-755331979250773951936,
 28017398406079098428608,
 13607531886656648441072768,
 -340536322975630153440817280]