A generalized recursion triangle sequence : m=1; t(n,k)=(k + m - 1)*t(n - 1, k, m) + (m*n - k + 1 - m)*t(n - 1, k - 1, m).

A156184

A generalized recursion triangle sequence : m=1; t(n,k)=(k + m - 1)*t(n - 1, k, m) + (m*n - k + 1 - m)*t(n - 1, k - 1, m).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =4a(8) =4a(9) =1a(10) =1a(11) =7a(12) =16a(13) =7a(14) =1a(15) =1a(16) =11a(17) =53a(18) =53a(19) =11a(20) =1a(21) =1a(22) =16a(23) =150a(24) =318a(25) =150a(26) =16a(27) =1a(28) =1a(29) =22

External references