T(n, m) = Sum_{k=1..(m+3)/2} C(m-k+2, k-1)*C(n+1, k-1)*C(n-m+k-1, k-1)*C(2*n-2*k+4, 2*m-4*k+5)/(C(2*k-2, k-1)*C(2*m-2*k+4, 2*k-2))/2, triangle read by rows.
A338372
T(n, m) = Sum_{k=1..(m+3)/2} C(m-k+2, k-1)*C(n+1, k-1)*C(n-m+k-1, k-1)*C(2*n-2*k+4, 2*m-4*k+5)/(C(2*k-2, k-1)*C(2*m-2*k+4, 2*k-2))/2, triangle read by rows.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =3a(4) =10a(5) =4a(6) =4a(7) =28a(8) =32a(9) =8a(10) =5a(11) =60a(12) =136a(13) =88a(14) =16a(15) =6a(16) =110a(17) =416a(18) =504a(19) =224a(20) =32a(21) =7a(22) =182a(23) =1036a(24) =2024a(25) =1616a(26) =544a(27) =64a(28) =8a(29) =280
External references
- oeis: A338372