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A009055 as a simple table

na(n)
01
1-1
2-11
3-253
4-9463
5-491609
6-30257347
7-1480493589
8177416283793
9125705754161615
1053738108098148101
1122477151211215445843
129977406312993326490265
134802660699035958910256759

[1,-1,-11,-253,-9463,-491609,-30257347,
 -1480493589,177416283793,125705754161615,
 53738108098148101,22477151211215445843,
 9977406312993326490265,4802660699035958910256759]