A046584 Odd numbers in writing first numerator and then denominator 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, 35, 1, 119, 35, 25, 1, 1, 1, 1, 29
Offset: 1
Examples
1/1; --> 1 1 1/1 1/1; --> 1 1 1 1 1/1 1/4 1/1; --> 1 1 1 1 1 1/1 5/4 5/4 1/1; --> 1 1 5 5 1 1 1/1 9/4 5/2 9/4 1/1; --> ... 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...
Crossrefs
Cf. A046563.