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A048110 as a simple table

na(n)
-21
-1-456
0-39600
1-1516256
2-37547076
3-695294928
4-10390984576
5-131304417600
6-1447427871414
7-14232212453368
8-126913165432704
9-1039564575554400
10-7901386666587800
11-56184964286852016
12-376299050740397568

[1,-456,-39600,-1516256,-37547076,-695294928,
 -10390984576,-131304417600,-1447427871414,
 -14232212453368,-126913165432704,
 -1039564575554400,-7901386666587800,
 -56184964286852016,-376299050740397568]