A028331 Elements to the right of the central elements of the even-Pascal triangle A028326 that are not 2.

6, 8, 20, 10, 30, 12, 70, 42, 14, 112, 56, 16, 252, 168, 72, 18, 420, 240, 90, 20, 924, 660, 330, 110, 22, 1584, 990, 440, 132, 24, 3432, 2574, 1430, 572, 156, 26, 6006, 4004, 2002, 728, 182, 28, 12870, 10010, 6006, 2730, 910, 210, 30, 22880, 16016