Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = Sum_{j=0..n} binomial(2*j,j) * binomial(k*j,n-j).

A361830

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = Sum_{j=0..n} binomial(2*j,j) * binomial(k*j,n-j).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =1a(4) =2a(5) =6a(6) =1a(7) =2a(8) =8a(9) =20a(10) =1a(11) =2a(12) =10a(13) =32a(14) =70a(15) =1a(16) =2a(17) =12a(18) =46a(19) =136a(20) =252a(21) =1a(22) =2a(23) =14a(24) =62a(25) =226a(26) =592a(27) =924a(28) =1a(29) =2

External references