Triangle T(n,k) read by rows: T(n, k) = (m*n - m*k + 1)*T(n - 1, k - 1) + (9*k - 8)*(m*k - (m - 1))*T(n - 1, k) where m = 0.

A166979

Triangle T(n,k) read by rows: T(n, k) = (m*n - m*k + 1)*T(n - 1, k - 1) + (9*k - 8)*(m*k - (m - 1))*T(n - 1, k) where m = 0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =11a(5) =1a(6) =1a(7) =111a(8) =30a(9) =1a(10) =1a(11) =1111a(12) =681a(13) =58a(14) =1a(15) =1a(16) =11111a(17) =14050a(18) =2305a(19) =95a(20) =1a(21) =1a(22) =111111a(23) =278061a(24) =78590a(25) =5820a(26) =141a(27) =1a(28) =1a(29) =1111111

External references