Numbers to the right of the central elements of the (2,1)-Pascal triangle A029653.

Terms

a(0) =1a(1) =1a(2) =4a(3) =1a(4) =5a(5) =1a(6) =14a(7) =6a(8) =1a(9) =20a(10) =7a(11) =1a(12) =50a(13) =27a(14) =8a(15) =1a(16) =77a(17) =35a(18) =9a(19) =1a(20) =182a(21) =112a(22) =44a(23) =10a(24) =1a(25) =294a(26) =156a(27) =54a(28) =11a(29) =1