Triangle read by rows: nonzero coefficients of the polynomials F_n(x) which express derivatives of tan(z) in terms of powers of tan(z).

A101343

Triangle read by rows: nonzero coefficients of the polynomials F_n(x) which express derivatives of tan(z) in terms of powers of tan(z).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =6a(6) =8a(7) =2a(8) =24a(9) =40a(10) =16a(11) =120a(12) =240a(13) =136a(14) =16a(15) =720a(16) =1680a(17) =1232a(18) =272a(19) =5040a(20) =13440a(21) =12096a(22) =3968a(23) =272a(24) =40320a(25) =120960a(26) =129024a(27) =56320a(28) =7936a(29) =362880

External references