Triangle read by rows: T(n, k) = t(n-k, k), where t(0,0) = 1, t(n,m) = 0 if n < 0 or m < 0, else t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), and f(n) = 5*n + 2.

A257614

Triangle read by rows: T(n, k) = t(n-k, k), where t(0,0) = 1, t(n,m) = 0 if n < 0 or m < 0, else t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), and f(n) = 5*n + 2.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =28a(5) =4a(6) =8a(7) =244a(8) =244a(9) =8a(10) =16a(11) =1844a(12) =5856a(13) =1844a(14) =16a(15) =32a(16) =13260a(17) =101620a(18) =101620a(19) =13260a(20) =32a(21) =64a(22) =93684a(23) =1511160a(24) =3455080a(25) =1511160a(26) =93684a(27) =64a(28) =128a(29) =657836

External references