A137753 First denominator and then numerator (left to right) of Leibniz's harmonic-like triangle.

1, 1, 2, 1, 2, 1, 3, 1, 6, 5, 3, 1, 4, 1, 12, 7, 12, 7, 4, 1, 5, 1, 20, 9, 30, 31, 20, 9, 5, 1, 6, 1, 30, 11, 60, 49, 60, 49, 30, 11, 6, 1, 7, 1, 42, 13, 105, 71, 140, 209, 105, 71, 42, 13, 7, 1, 8, 1, 56, 15, 168, 97, 280, 351, 280, 351, 168, 97

Offset: 1

Author

Mohammad K. Azarian, Feb 10 2008

Keywords

• frac
• nonn
• tabf
• less

Examples

			1/1; --> 1 1
1/2, 1/2; --> 2 1 2 1
1/3, 5/6, 1/3; --> 3 1 6 5 3 1
1/4, 7/12, 7/12, 1/4; --> 4 1 12 7 12 7 4 1
1/5, 9/20, 31/30, 9/20, 1/5; --> 5 1 20 9 30 31 20 9 5 1
		

Crossrefs

Cf. A003506; A007622; A046201; A046204; A046205; A046206; A046208; A046212; A137752.

Cf. A137752