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A046566 First denominator and then numerator of the 1/4-Pascal triangle (by row), excluding 1's. 0
4, 4, 5, 4, 5, 4, 9, 2, 5, 4, 9, 4, 13, 4, 19, 4, 19, 4, 13, 4, 17, 8, 2, 19, 8, 4, 17, 4, 21, 4, 49, 2, 35, 2, 35, 4, 49, 4, 21, 4, 25, 2, 35, 4, 119, 35, 4, 119, 2, 35, 4, 25, 4, 29 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

EXAMPLE

1/1; -->

1/1 1/1; -->

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

1/1 5/4 5/4 1/1; --> 4 5 4

1/1 9/4 5/2 9/4 1/1; --> 4 9 2 5 4 9

1/1 13/4 19/4 19/4 13/4 1/1; --> ...

1/1 17/4 8/1 19/2 8/1 17/4 1/1;

1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

CROSSREFS

Cf. A046563.

Sequence in context: A023403 A091283 A161758 * A046593 A158935 A226446

Adjacent sequences:  A046563 A046564 A046565 * A046567 A046568 A046569

KEYWORD

tabf,nonn,frac,less

AUTHOR

Mohammad K. Azarian

STATUS

approved

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Last modified October 22 18:17 EDT 2019. Contains 328319 sequences. (Running on oeis4.)