Triangle read by rows, based on the two-variable g.f. exp(x*t)*(x*(1 - 2*exp(x)) - 2*exp(x))/(1 - exp(t)) (the first of two parts).

A138133

Triangle read by rows, based on the two-variable g.f. exp(x*t)*(x*(1 - 2*exp(x)) - 2*exp(x))/(1 - exp(t)) (the first of two parts).

Terms

    a(0) =0a(1) =2a(2) =-4a(3) =0a(4) =-1a(5) =6a(6) =-6a(7) =0a(8) =0a(9) =-8a(10) =24a(11) =-16a(12) =0a(13) =2a(14) =0a(15) =-60a(16) =120a(17) =-60a(18) =0a(19) =0a(20) =48a(21) =0a(22) =-480a(23) =720a(24) =-288a(25) =0a(26) =-40a(27) =0a(28) =840a(29) =0

External references