Square array read by ascending antidiagonals: T(n,k) = [x^(2*k)] ( (1 + x)^(n+2)/(1 - x)^(n-2) )^k for n, k >= 0.
A364518
Square array read by ascending antidiagonals: T(n,k) = [x^(2*k)] ( (1 + x)^(n+2)/(1 - x)^(n-2) )^k for n, k >= 0.
Terms
- a(0) =1a(1) =1a(2) =-2a(3) =1a(4) =0a(5) =6a(6) =1a(7) =6a(8) =-10a(9) =-20a(10) =1a(11) =16a(12) =70a(13) =0a(14) =70a(15) =1a(16) =30a(17) =630a(18) =924a(19) =198a(20) =-252a(21) =1a(22) =48a(23) =2310a(24) =28672a(25) =12870a(26) =0a(27) =924a(28) =1a(29) =70
External references
- oeis: A364518