login

A012553 as a simple table

na(n)
01
10
2-12
3-360
4-4592
5866880
6144205248
710276506240
8-1972062209792
9-1066588240250880
10-219129099375885312
1133054966279836497920
1254554661987210721497088
1324677742880461438548951040

[1,0,-12,-360,-4592,866880,144205248,10276506240,
 -1972062209792,-1066588240250880,
 -219129099375885312,33054966279836497920,
 54554661987210721497088,
 24677742880461438548951040]