Triangle, read by rows, where T(n,k) = Sum_{j=0..k} T(n-1,j)*(j+1)*[(k+1)*(k+2)/2 - j*(j+1)/2] for n>k>0, with T(0,0)=1 and T(n,n) = T(n,n-1) for n>0.
A102400
Triangle, read by rows, where T(n,k) = Sum_{j=0..k} T(n-1,j)*(j+1)*[(k+1)*(k+2)/2 - j*(j+1)/2] for n>k>0, with T(0,0)=1 and T(n,n) = T(n,n-1) for n>0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =7a(5) =7a(6) =1a(7) =31a(8) =139a(9) =139a(10) =1a(11) =127a(12) =1567a(13) =5711a(14) =5711a(15) =1a(16) =511a(17) =15379a(18) =126579a(19) =408354a(20) =408354a(21) =1a(22) =2047a(23) =143527a(24) =2357431a(25) =15333661a(26) =45605881a(27) =45605881a(28) =1a(29) =8191
External references
- oeis: A102400