Triangle of Hankel transforms of binomial(n+k, k).

Terms

a(0) =1a(1) =1a(2) =-1a(3) =1a(4) =-3a(5) =-1a(6) =1a(7) =-6a(8) =-10a(9) =1a(10) =1a(11) =-10a(12) =-50a(13) =35a(14) =1a(15) =1a(16) =-15a(17) =-175a(18) =490a(19) =126a(20) =-1a(21) =1a(22) =-21a(23) =-490a(24) =4116a(25) =5292a(26) =-462a(27) =-1a(28) =1a(29) =-28