Triangle T, read by rows, where g.f. of row n of matrix power T^(2^n) = (2^(2n-1) + y)*y^(n-1) for n>0.

A152790

Triangle T, read by rows, where g.f. of row n of matrix power T^(2^n) = (2^(2n-1) + y)*y^(n-1) for n>0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =-3a(4) =2a(5) =1a(6) =84a(7) =-28a(8) =4a(9) =1a(10) =-12520a(11) =3040a(12) =-240a(13) =8a(14) =1a(15) =8233600a(16) =-1757824a(17) =103168a(18) =-1984a(19) =16a(20) =1a(21) =-14411593728a(22) =4551192576a(23) =-235382784a(24) =3397632a(25) =-16128a(26) =32a(27) =1a(31) =-30807851008a(32) =110280704

External references