Triangle T(n,k) in which n-th row lists the values of the n-th derivative at x=1 of all functions that are representable as x^x^...^x with n x's and parentheses inserted in all possible ways; n>=1, 1<=k<=A000081(n).

A216349

Triangle T(n,k) in which n-th row lists the values of the n-th derivative at x=1 of all functions that are representable as x^x^...^x with n x's and parentheses inserted in all possible ways; n>=1, 1<=k<=A000081(n).

Terms

    a(0) =1a(1) =2a(2) =12a(3) =9a(4) =156a(5) =100a(6) =80a(7) =56a(8) =3160a(9) =1880a(10) =1180a(11) =1420a(12) =950a(13) =1360a(14) =890a(15) =660a(16) =480a(17) =87990a(18) =50496a(19) =29682a(20) =35382a(21) =24042a(22) =22008a(23) =14928a(24) =31968a(25) =20268a(26) =14988a(27) =10848a(28) =34974a(29) =21474

External references