A046591 First numerator and then denominator of each element of the 1/4-Pascal triangle (by row), excluding 2's.

1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 5, 4, 5, 4, 1, 1, 1, 1, 9, 4, 5, 9, 4, 1, 1, 1, 1, 13, 4, 19, 4, 19, 4, 13, 4, 1, 1, 1, 1, 17, 4, 8, 1, 19, 8, 1, 17, 4, 1, 1, 1, 1, 21, 4, 49, 4, 35, 35, 49, 4, 21, 4, 1, 1, 1, 1, 25, 4, 35, 119, 4, 35, 1, 119, 4, 35, 25, 4, 1, 1, 1, 1, 29, 4