First term of n-th difference sequence of round((k*e)), k >= 0.

Terms

a(0) =3a(1) =-1a(2) =2a(3) =-3a(4) =4a(5) =-6a(6) =12a(7) =-28a(8) =63a(9) =-126a(10) =217a(11) =-308a(12) =308a(13) =0a(14) =-1078a(15) =3871a(16) =-10290a(17) =24157a(18) =-52920a(19) =110446a(20) =-220892a(21) =422576a(22) =-767976a(23) =1309550a(24) =-2047067a(25) =2782560a(26) =-2767610a(27) =-98280a(28) =11015410a(29) =-41990840