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

Offset: 1

Author

Mohammad K. Azarian

Keywords

• tabf
• nonn
• frac
• less

Examples

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