Triangle read by rows: T(n,k) = binomial(n,k) + 2^k*binomial(n,k+1) (0 <= k <= n).

Terms

a(0) =1a(1) =2a(2) =1a(3) =3a(4) =4a(5) =1a(6) =4a(7) =9a(8) =7a(9) =1a(10) =5a(11) =16a(12) =22a(13) =12a(14) =1a(15) =6a(16) =25a(17) =50a(18) =50a(19) =21a(20) =1a(21) =7a(22) =36a(23) =95a(24) =140a(25) =111a(26) =38a(27) =1a(28) =8a(29) =49