Triangle T(n, k) = 2*(n+1 - mod(n, k+1) - mod(n, n-k+1) ) + (n! - k! - (n-k)!) read by rows.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =6a(5) =1a(6) =1a(7) =9a(8) =9a(9) =1a(10) =1a(11) =27a(12) =26a(13) =27a(14) =1a(15) =1a(16) =105a(17) =118a(18) =118a(19) =105a(20) =1a(21) =1a(22) =613a(23) =706a(24) =714a(25) =706a(26) =613a(27) =1a(28) =1a(29) =4333