A row sum triangular sequence: A(n,k)= A(n - 1, k - 1) + A(n - 1, k) + (n + 1)*(n + 2)*A(n - 2, k - 1).

A153759

A row sum triangular sequence: A(n,k)= A(n - 1, k - 1) + A(n - 1, k) + (n + 1)*(n + 2)*A(n - 2, k - 1).

Terms

    a(0) =2a(1) =5a(2) =5a(3) =1a(4) =58a(5) =1a(6) =1a(7) =209a(8) =209a(9) =1a(10) =1a(11) =252a(12) =2854a(13) =252a(14) =1a(15) =1a(16) =309a(17) =14810a(18) =14810a(19) =309a(20) =1a(21) =1a(22) =382a(23) =33263a(24) =235108a(25) =33263a(26) =382a(27) =1a(28) =1a(29) =473

External references