A046553 - OEIS

A046553

First denominator and then numerator of each element of the 1/3-Pascal triangle (by row), excluding 3's.

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 7, 8, 7, 1, 1, 1, 1, 10, 1, 5, 1, 5, 10, 1, 1, 1, 1, 13, 25, 1, 10, 25, 13, 1, 1, 1, 1, 16, 38, 55, 55, 38, 16, 1, 1, 1, 1, 19, 1, 18, 1, 31, 110, 1, 31, 1, 18, 19, 1, 1, 1, 1, 22, 73, 1, 49, 203, 203, 1

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,14

LINKS

Table of n, a(n) for n=1..78.

EXAMPLE

1/1; -> 1 1

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

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

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

1/1 7/3 8/3 7/3 1/1;

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