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A046579 First numerator and then denominator of the elements to the right of the central elements of the 1/4-Pascal triangle (by row), excluding 4's. 0
1, 1, 1, 1, 5, 1, 1, 9, 1, 1, 19, 13, 1, 1, 8, 1, 17, 1, 1, 35, 2, 49, 21, 1, 1, 119, 35, 2, 25, 1, 1, 259, 189, 95, 29, 1, 1, 112, 1, 71, 1, 31, 1, 33, 1, 1, 483, 2, 183, 1, 102, 1, 157, 37, 1, 1, 849, 2, 285, 1, 565, 97, 2, 41, 1, 1, 1815, 2, 1419, 2, 1705, 759, 235, 45, 1, 1, 1617 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..77.

EXAMPLE

1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 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: A141398 A058281 A046583 * A153108 A157174 A183450

Adjacent sequences:  A046576 A046577 A046578 * A046580 A046581 A046582

KEYWORD

nonn

AUTHOR

Mohammad K. Azarian

EXTENSIONS

More terms from James A. Sellers, Dec 14 1999

STATUS

approved

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Last modified January 24 16:47 EST 2020. Contains 331209 sequences. (Running on oeis4.)