Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 2/(1 - 2*k*x + ((k-2)*x)^2 + (1 - k*x) * sqrt(1 - 2*k*x + ((k-2)*x)^2)).
A331791
Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 2/(1 - 2*k*x + ((k-2)*x)^2 + (1 - k*x) * sqrt(1 - 2*k*x + ((k-2)*x)^2)).
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =2a(5) =-3a(6) =1a(7) =4a(8) =3a(9) =0a(10) =1a(11) =6a(12) =15a(13) =4a(14) =10a(15) =1a(16) =8a(17) =33a(18) =56a(19) =5a(20) =0a(21) =1a(22) =10a(23) =57a(24) =180a(25) =210a(26) =6a(27) =-35a(28) =1a(29) =12
External references
- oeis: A331791