T(n,k) is the n-th derivative of the difference between the k-th tetration of x (power tower of order k) and its predecessor (or 0 if k=0) at x=1; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

A277536

T(n,k) is the n-th derivative of the difference between the k-th tetration of x (power tower of order k) and its predecessor (or 0 if k=0) at x=1; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =0a(5) =2a(6) =0a(7) =0a(8) =3a(9) =6a(10) =0a(11) =0a(12) =8a(13) =24a(14) =24a(15) =0a(16) =0a(17) =10a(18) =170a(19) =180a(20) =120a(21) =0a(22) =0a(23) =54a(24) =900a(25) =1980a(26) =1440a(27) =720a(28) =0a(29) =0

External references