Array read by downward antidiagonals: A(n,k) = A(n,k-1) + (k+1)*(A(n-1,k) + A(n-1,k+1)) with A(n,0) = A(n-1,0) + A(n-1,1), A(0,k) = 1, n >= 0, k >= 0.
A379460
Array read by downward antidiagonals: A(n,k) = A(n,k-1) + (k+1)*(A(n-1,k) + A(n-1,k+1)) with A(n,0) = A(n-1,0) + A(n-1,1), A(0,k) = 1, n >= 0, k >= 0.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =8a(6) =1a(7) =12a(8) =44a(9) =52a(10) =1a(11) =20a(12) =140a(13) =420a(14) =472a(15) =1a(16) =30a(17) =340a(18) =1860a(19) =5032a(20) =5504a(21) =1a(22) =42a(23) =700a(24) =6020a(25) =28672a(26) =72912a(27) =78416a(28) =1a(29) =56
External references
- oeis: A379460