Rectangular table, read by antidiagonals, where the g.f.s of row n, R(x,n), satisfy: R(x,n+1) = R(G(x),n) for n>=0 and x*R(x,0) = G(x) = x + x*G(G(x)) is the g.f. of A030266.

A128325

Rectangular table, read by antidiagonals, where the g.f.s of row n, R(x,n), satisfy: R(x,n+1) = R(G(x),n) for n>=0 and x*R(x,0) = G(x) = x + x*G(G(x)) is the g.f. of A030266.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =1a(7) =1a(8) =3a(9) =6a(10) =1a(11) =1a(12) =4a(13) =12a(14) =23a(15) =1a(16) =1a(17) =5a(18) =20a(19) =57a(20) =104a(21) =1a(22) =1a(23) =6a(24) =30a(25) =114a(26) =305a(27) =531a(28) =1a(29) =1

External references