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A001782 as a simple table

na(n)
11
2-44
3-4940800
4-564083990621761115783168
5-265595429519150677725101890892978815884074732203939261150723571712

[1,-44,-4940800,-564083990621761115783168,
 -2655954295191506777251018908929788158840747322039\
 39261150723571712]