Given g.f. A(x), the even bisections of both A(x) and A(x)^2 are equal, and the odd bisections of both A(x)^2 and A(x)^3 are equal (after the initial terms).

A351771

Given g.f. A(x), the even bisections of both A(x) and A(x)^2 are equal, and the odd bisections of both A(x)^2 and A(x)^3 are equal (after the initial terms).

Terms

    a(0) =1a(1) =1a(2) =-1a(3) =3a(4) =-7a(5) =28a(6) =-79a(7) =350a(8) =-1075a(9) =5020a(10) =-16180a(11) =78023a(12) =-259417a(13) =1278340a(14) =-4343642a(15) =21740636a(16) =-75065787a(17) =380161308a(18) =-1328887420a(19) =6792111260a(20) =-23975385148a(21) =123448657904a(22) =-439228736887

External references