A046585 Odd numbers in writing first denominator and then numerator of each element of the 1/4-Pascal triangle (by row).

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 1, 1, 9, 5, 9, 1, 1, 1, 1, 13, 19, 19, 13, 1, 1, 1, 1, 17, 1, 19, 1, 17, 1, 1, 1, 1, 21, 49, 35, 35, 49, 21, 1, 1, 1, 1, 25, 35, 119, 1, 35, 119, 35, 25, 1, 1, 1, 1, 29, 95, 189, 259, 259, 189, 95, 29, 1, 1, 1, 1, 33, 1, 31, 1, 71, 1, 259