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A203422 as a simple table

na(n)
11
2-6
3-288
4144000
5933120000
6-94097687040000
7-172670008499896320000
86607002383077924814192640000
95946302144770132332773376000000000000
10-140210694122490812598274255654748160000000000000

[1,-6,-288,144000,933120000,-94097687040000,
 -172670008499896320000,
 6607002383077924814192640000,
 5946302144770132332773376000000000000,
 -140210694122490812598274255654748160000000000000]