A046546 - OEIS

A046546

First numerator and then denominator of the elements to the right of the central elements of the 1/3-Pascal triangle.

1, 1, 1, 1, 4, 3, 1, 1, 7, 3, 1, 1, 5, 1, 10, 3, 1, 1, 25, 3, 13, 3, 1, 1, 55, 3, 38, 3, 16, 3, 1, 1, 31, 1, 18, 1, 19, 3, 1, 1, 203, 3, 49, 1, 73, 3, 22, 3, 1, 1, 350, 3, 220, 3, 95, 3, 25, 3, 1, 1, 252, 1, 190, 1, 105, 1, 40, 1, 28, 3, 1, 1, 442, 1, 295, 1

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OFFSET

1,5

LINKS

Table of n, a(n) for n=1..76.

EXAMPLE

1/1; -->

1/1 1/1; --> 1 1

1/1 1/3 1/1; --> 1 1

1/1 4/3 4/3 1/1; --> 4 3 1 1

1/1 7/3 8/3 7/3 1/1; --> ...

1/1 10/3 5/1 5/1 10/3 1/1;