1914288domain: NAppears in sequencesn-th derivative of (x^x)^((x^x)^x) at x=1.at n=8A215709Eighth derivative of f_n at x=1, where f_n is the n-th of all functions that are representable as x^x^...^x with m>=1 x's and parentheses inserted in all possible ways.at n=11A215838