Triangle read by rows: T(n,k) (1<=k<=n) given by T(n, 1) = T(n,n) = 1, otherwise T(n, k) = (m*n-m*k+1)*T(n-1,k-1) + (m*k-m+1)*T(n-1,k), where m = 5.

A142460

Triangle read by rows: T(n,k) (1<=k<=n) given by T(n, 1) = T(n,n) = 1, otherwise T(n, k) = (m*n-m*k+1)*T(n-1,k-1) + (m*k-m+1)*T(n-1,k), where m = 5.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =12a(5) =1a(6) =1a(7) =83a(8) =83a(9) =1a(10) =1a(11) =514a(12) =1826a(13) =514a(14) =1a(15) =1a(16) =3105a(17) =28310a(18) =28310a(19) =3105a(20) =1a(21) =1a(22) =18656a(23) =376615a(24) =905920a(25) =376615a(26) =18656a(27) =1a(28) =1a(29) =111967

External references