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A046533
First denominator and then numerator of 1/2-Pascal triangle (by row), excluding 2's.
0
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 5, 1, 3, 5, 1, 1, 1, 1, 7, 11, 11, 7, 1, 1, 1, 1, 9, 1, 9, 1, 11, 1, 9, 9, 1, 1, 1, 1, 11, 27, 1, 20, 1, 20, 27, 11, 1, 1, 1, 1, 13, 1, 19, 67, 1, 40, 67, 1, 19, 13, 1, 1, 1, 1, 15, 51
OFFSET
1,14
EXAMPLE
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; ...
with numerator/denominator exchange and without the 2's.
CROSSREFS
Cf. A046213.
Sequence in context: A351577 A328572 A016554 * A046532 A014421 A127197
KEYWORD
tabf,nonn,less
STATUS
approved