A046227 First numerator and then denominator of elements to right of central elements of 1/2-Pascal triangle (by row), excluding 1's.

3, 2, 5, 2, 11, 2, 7, 2, 9, 9, 2, 20, 27, 2, 11, 2, 67, 2, 19, 13, 2, 147, 2, 105, 2, 51, 2, 15, 2, 126, 78, 33, 17, 2, 273, 204, 111, 83, 2, 19, 2, 477, 315, 305, 2, 51, 21, 2, 1023, 792, 935, 2, 407, 2, 123, 2, 23, 2, 1815, 2519, 2, 671, 265, 73, 25, 2, 3861

Offset: 1

Author

Mohammad K. Azarian

Keywords

• tabf
• nonn
• frac
• less

Examples

			1/1; -->
1/1  1/1; -->
1/1  1/2  1/1; -->
1/1  3/2  3/2  1/1; --> 3 2
1/1  5/2  3/1  5/2  1/1; --> 5 2
1/1  7/2 11/2 11/2  7/2  1/1; --> ...
1/1  9/2  9/1 11/1  9/1  9/2  1/1;
1/1 11/2 27/2 20/1 20/1 27/2 11/2 1/1;
...
		

Crossrefs

Cf. A046213.

Extensions

More terms from Sean A. Irvine, Apr 07 2021