Distinct numbers in writing first numerator and then denominator of 1/2-Pascal triangle (by row).

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =11a(6) =9a(7) =27a(8) =20a(9) =13a(10) =19a(11) =67a(12) =40a(13) =15a(14) =51a(15) =105a(16) =147a(17) =17a(18) =33a(19) =78a(20) =126a(21) =83a(22) =111a(23) =204a(24) =273a(25) =21a(26) =305a(27) =315a(28) =477a(29) =546