Triangle read by rows: T(n,k) = t(n-k, k), where t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1) and f(n) = 5*n + 3.

A257623

Triangle read by rows: T(n,k) = t(n-k, k), where t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1) and f(n) = 5*n + 3.

Terms

    a(0) =1a(1) =3a(2) =3a(3) =9a(4) =48a(5) =9a(6) =27a(7) =501a(8) =501a(9) =27a(10) =81a(11) =4494a(12) =13026a(13) =4494a(14) =81a(15) =243a(16) =37815a(17) =250230a(18) =250230a(19) =37815a(20) =243a(21) =729a(22) =309324a(23) =4122735a(24) =9008280a(25) =4122735a(26) =309324a(27) =729a(28) =2187a(29) =2498649

External references