Numerators of elements to right of central elements of 1/2-Pascal triangle (by row).

Terms

a(0) =1a(1) =1a(2) =3a(3) =1a(4) =5a(5) =1a(6) =11a(7) =7a(8) =1a(9) =9a(10) =9a(11) =1a(12) =20a(13) =27a(14) =11a(15) =1a(16) =67a(17) =19a(18) =13a(19) =1a(20) =147a(21) =105a(22) =51a(23) =15a(24) =1a(25) =126a(26) =78a(27) =33a(28) =17a(29) =1