A046229 First numerator and then denominator of elements to right of central elements of 1/2-Pascal triangle (by row), excluding 2's.

1, 1, 1, 1, 3, 1, 1, 5, 1, 1, 11, 7, 1, 1, 9, 1, 9, 1, 1, 20, 1, 27, 11, 1, 1, 67, 19, 1, 13, 1, 1, 147, 105, 51, 15, 1, 1, 126, 1, 78, 1, 33, 1, 17, 1, 1, 273, 1, 204, 1, 111, 1, 83, 19, 1, 1, 477, 1, 315, 1, 305, 51, 1, 21, 1, 1, 1023, 1, 792, 1, 935, 407, 123, 23, 1, 1, 1815, 1

Offset: 1

Author

Mohammad K. Azarian

Keywords

• nonn
• tabf

Examples

			1/1; 1/1 1/1; 1/1 1/2 1/1; 1/1 3/2 3/2 1/1; 1/1 5/2 3/1 5/2 1/1; 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 James Sellers, Dec 13 1999