Triangle, read by rows, T(n,k) = f(n,k) - f(n,0) + 1, where f(n,k) = Sum_{j=0..k} (n+k)!/((n-j)!*(k-j)!*j!) + Sum_{j=0..n-k} (2*n-k)!/((n-j)!*(n - k-j)!*j!).
A176082
Triangle, read by rows, T(n,k) = f(n,k) - f(n,0) + 1, where f(n,k) = Sum_{j=0..k} (n+k)!/((n-j)!*(k-j)!*j!) + Sum_{j=0..n-k} (2*n-k)!/((n-j)!*(n - k-j)!*j!).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =-24a(5) =1a(6) =1a(7) =-534a(8) =-534a(9) =1a(10) =1a(11) =-12050a(12) =-14000a(13) =-12050a(14) =1a(15) =1a(16) =-326430a(17) =-381325a(18) =-381325a(19) =-326430a(20) =1a(21) =1a(22) =-10442537a(23) =-12093494a(24) =-12275676a(25) =-12093494a(26) =-10442537a(27) =1a(28) =1a(29) =-384746012
External references
- oeis: A176082