n-th derivative of (x^x)^x at x=1.

Terms

a(0) =1a(1) =1a(2) =4a(3) =12a(4) =52a(5) =240a(6) =1188a(7) =6804a(8) =38960a(9) =253296a(10) =1654560a(11) =11816640a(12) =85816608a(13) =668005728a(14) =5240582592a(15) =44667645120a(16) =365989405440