A014463 Triangular array formed from elements to left of middle of rows of Pascal's triangle that are not 1.

3, 4, 5, 10, 6, 15, 7, 21, 35, 8, 28, 56, 9, 36, 84, 126, 10, 45, 120, 210, 11, 55, 165, 330, 462, 12, 66, 220, 495, 792, 13, 78, 286, 715, 1287, 1716, 14, 91, 364, 1001, 2002, 3003, 15, 105, 455, 1365, 3003, 5005, 6435, 16, 120, 560, 1820, 4368, 8008, 11440