A046575 First numerator and then denominator of the elements to the right of the central elements of the 1/4-Pascal triangle.

1, 1, 1, 1, 5, 4, 1, 1, 9, 4, 1, 1, 19, 4, 13, 4, 1, 1, 8, 1, 17, 4, 1, 1, 35, 2, 49, 4, 21, 4, 1, 1, 119, 4, 35, 2, 25, 4, 1, 1, 259, 4, 189, 4, 95, 4, 29, 4, 1, 1, 112, 1, 71, 1, 31, 1, 33, 4, 1, 1, 483, 2, 183, 1, 102, 1, 157, 4, 37, 4, 1, 1, 849, 2, 285, 1, 565, 4, 97, 2, 41, 4, 1, 1