Distinct elements to the right of the central elements of the even-Pascal triangle A028326.

Terms

a(0) =2a(1) =6a(2) =8a(3) =20a(4) =10a(5) =30a(6) =12a(7) =70a(8) =42a(9) =14a(10) =112a(11) =56a(12) =16a(13) =252a(14) =168a(15) =72a(16) =18a(17) =420a(18) =240a(19) =90a(20) =924a(21) =660a(22) =330a(23) =110a(24) =22a(25) =1584a(26) =990a(27) =440a(28) =132a(29) =24