A046578 First denominator and then numerator of the elements to the right of the central elements of the 1/4-Pascal triangle (by row), excluding 1's and 4's.

5, 9, 19, 13, 8, 17, 2, 35, 49, 21, 119, 2, 35, 25, 259, 189, 95, 29, 112, 71, 31, 33, 2, 483, 183, 102, 157, 37, 2, 849, 285, 565, 2, 97, 41, 2, 1815, 2, 1419, 1705, 759, 235, 45, 1617, 4543, 616, 2, 497, 70, 49, 3432, 11011, 7007, 2, 1729, 2, 637, 329, 53, 24739, 2, 9009

Offset: 1

Author

Mohammad K. Azarian

Keywords

• tabf
• nonn
• frac
• less

Examples

			1/1; -->
1/1 1/1; -->
1/1 1/4 1/1; -->
1/1 5/4 5/4 1/1; --> 5
1/1 9/4 5/2 9/4 1/1; --> 9
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.

Extensions

More terms from David W. Wilson