A137759 Odd numbers in writing first numerator and then denominator (left to right) of Leibniz's harmonic-like triangle.
1, 1, 1, 1, 1, 3, 5, 1, 3, 1, 7, 7, 1, 1, 5, 9, 31, 9, 1, 5, 1, 11, 49, 49, 11, 1, 1, 7, 13, 71, 105, 209, 71, 105, 13, 1, 7, 1, 15, 97, 351, 351, 97, 15, 1, 1, 9, 17, 127, 545, 1471, 545, 127, 17, 1, 9, 1, 19, 161, 799, 2561, 2561, 799, 161, 19, 1
Offset: 1
Examples
1/1; --> 1 1 1/2, 1/2; --> 1 1 1/3, 5/6, 1/3; --> 1 3 5 1 3 1/4, 7/12, 7/12, 1/4; --> 1/5, 9/20, 31/30, 9/20, 1/5;