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A278860 as a simple table

na(n)
01
11
292
37207016256
422448940392028699561050505216
5462177945344267713413229252637478222244311831261385379020800000

[1,1,92,7207016256,22448940392028699561050505216,
 46217794534426771341322925263747822224431183126138\
 5379020800000]