Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of sqrt((1-(k+4)*x+sqrt(1+2*(k-4)*x+((k+4)*x)^2)) / (2 * (1+2*(k-4)*x+((k+4)*x)^2))).
A337419
Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of sqrt((1-(k+4)*x+sqrt(1+2*(k-4)*x+((k+4)*x)^2)) / (2 * (1+2*(k-4)*x+((k+4)*x)^2))).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =1a(5) =6a(6) =1a(7) =0a(8) =-5a(9) =20a(10) =1a(11) =-1a(12) =-14a(13) =-41a(14) =70a(15) =1a(16) =-2a(17) =-21a(18) =-48a(19) =-125a(20) =252a(21) =1a(22) =-3a(23) =-26a(24) =-7a(25) =198a(26) =131a(27) =924a(28) =1a(29) =-4
External references
- oeis: A337419