T(n,k) = 12*A046802(n,k) - 9*A008518(n,k) - 2*A007318(n,k), triangle read by rows (0 <= k <= n).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =14a(5) =1a(6) =1a(7) =33a(8) =33a(9) =1a(10) =1a(11) =64a(12) =186a(13) =64a(14) =1a(15) =1a(16) =119a(17) =724a(18) =724a(19) =119a(20) =1a(21) =1a(22) =222a(23) =2415a(24) =5120a(25) =2415a(26) =222a(27) =1a(28) =1a(29) =421