Array read by downward antidiagonals: A(n,k) = A(n-1,k) + (k+1)*A(n-1,k+1) + k*A(n-1,k-1) with A(n,0) = A(n-1,0) + A(n-1,1), A(0,k) = 1.
A391886
Array read by downward antidiagonals: A(n,k) = A(n-1,k) + (k+1)*A(n-1,k+1) + k*A(n-1,k-1) with A(n,0) = A(n-1,0) + A(n-1,1), A(0,k) = 1.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =6a(6) =1a(7) =6a(8) =18a(9) =24a(10) =1a(11) =8a(12) =38a(13) =100a(14) =124a(15) =1a(16) =10a(17) =66a(18) =272a(19) =668a(20) =792a(21) =1a(22) =12a(23) =102a(24) =588a(25) =2236a(26) =5264a(27) =6056a(28) =1a(29) =14
External references
- oeis: A391886