Inverse Euler transform applied once to {1,-1,0,0,0,...}, twice to {1,0,0,0,0,...}, or three times to {1,1,1,1,1,...}.

A320767

Inverse Euler transform applied once to {1,-1,0,0,0,...}, twice to {1,0,0,0,0,...}, or three times to {1,1,1,1,1,...}.

Terms

    a(0) =1a(1) =1a(2) =-2a(3) =1a(4) =-1a(5) =2a(6) =-3a(7) =4a(8) =-5a(9) =8a(10) =-13a(11) =18a(12) =-25a(13) =40a(14) =-62a(15) =90a(16) =-135a(17) =210a(18) =-324a(19) =492a(20) =-750a(21) =1164a(22) =-1809a(23) =2786a(24) =-4305a(25) =6710a(26) =-10460a(27) =16264a(28) =-25350a(29) =39650

External references