A046555 - OEIS

A046555

Odd numbers in writing first numerator and then denominator of each element of the 1/3-Pascal triangle (by row).

1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 7, 3, 3, 7, 3, 1, 1, 1, 1, 3, 5, 1, 5, 1, 3, 1, 1, 1, 1, 13, 3, 25, 3, 1, 25, 3, 13, 3, 1, 1, 1, 1, 3, 3, 55, 3, 55, 3, 3, 3, 1, 1, 1, 1, 19, 3, 1, 31, 1, 3, 31, 1, 1, 19, 3, 1, 1, 1, 1, 3, 73, 3, 49, 1, 203, 3, 203, 3, 49, 1, 73, 3, 3, 1, 1

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OFFSET

1,10

LINKS

Table of n, a(n) for n=1..95.

EXAMPLE

1/1; --> 1 1

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

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

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