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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =10a(8) =10a(9) =1a(10) =1a(11) =22a(12) =40a(13) =22a(14) =1a(15) =1a(16) =46a(17) =124a(18) =124a(19) =46a(20) =1a(21) =1a(22) =94a(23) =340a(24) =496a(25) =340a(26) =94a(27) =1a(28) =1a(29) =190