Triangle read by rows: row n gives coefficients C(n,j) for a Sheffer sequence (binomial-type) with lowering operator (D-1)/2 + T{ (1/2) * exp[(D-1)/2] } where T(x) is Cayley's Tree function.

A135494

Triangle read by rows: row n gives coefficients C(n,j) for a Sheffer sequence (binomial-type) with lowering operator (D-1)/2 + T{ (1/2) * exp[(D-1)/2] } where T(x) is Cayley's Tree function.

Terms

    a(0) =1a(1) =-1a(2) =1a(3) =-1a(4) =-3a(5) =1a(6) =-1a(7) =-1a(8) =-6a(9) =1a(10) =-1a(11) =5a(12) =5a(13) =-10a(14) =1a(15) =-1a(16) =19a(17) =30a(18) =25a(19) =-15a(20) =1a(21) =-1a(22) =49a(23) =49a(24) =70a(25) =70a(26) =-21a(27) =1a(28) =-1a(29) =111

External references