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

A215643

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

Terms

    a(0) =1a(1) =1a(2) =2a(3) =15a(4) =104a(5) =890a(6) =8814a(7) =100660a(8) =1288048a(9) =18337680a(10) =286674960a(11) =4882660464a(12) =89880715704

External references