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A046532 First numerator and then denominator 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, 3, 1, 5, 1, 1, 1, 1, 7, 11, 11, 7, 1, 1, 1, 1, 9, 9, 1, 11, 1, 9, 1, 9, 1, 1, 1, 1, 11, 27, 20, 1, 20, 1, 27, 11, 1, 1, 1, 1, 13, 19, 1, 67, 40, 1, 67, 19, 1, 13, 1, 1, 1, 1, 15, 51 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,14

LINKS

Table of n, a(n) for n=1..75.

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;

without the 2's.

CROSSREFS

Cf. A046213.

Sequence in context: A130778 A016554 A046533 * A014421 A127197 A114231

Adjacent sequences:  A046529 A046530 A046531 * A046533 A046534 A046535

KEYWORD

tabf,nonn,less

AUTHOR

Mohammad K. Azarian

STATUS

approved

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Last modified March 23 17:19 EDT 2019. Contains 321432 sequences. (Running on oeis4.)