Triangle T(n, k) = 2^(k-1) * E(n, k-1) where E(n,k) are the Eulerian numbers A173018, read by rows.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =8a(5) =4a(6) =1a(7) =22a(8) =44a(9) =8a(10) =1a(11) =52a(12) =264a(13) =208a(14) =16a(15) =1a(16) =114a(17) =1208a(18) =2416a(19) =912a(20) =32a(21) =1a(22) =240a(23) =4764a(24) =19328a(25) =19056a(26) =3840a(27) =64a(28) =1a(29) =494