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A046578 First denominator and then numerator of the elements to the right of the central elements of the 1/4-Pascal triangle (by row), excluding 1's and 4's. 0
5, 9, 19, 13, 8, 17, 2, 35, 49, 21, 119, 2, 35, 25, 259, 189, 95, 29, 112, 71, 31, 33, 2, 483, 183, 102, 157, 37, 2, 849, 285, 565, 2, 97, 41, 2, 1815, 2, 1419, 1705, 759, 235, 45, 1617, 4543, 616, 2, 497, 70, 49, 3432, 11011, 7007, 2, 1729, 2, 637, 329, 53, 24739, 2, 9009 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..62.

EXAMPLE

1/1; -->

1/1 1/1; -->

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

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

1/1 9/4 5/2 9/4 1/1; --> 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: A036832 A257595 A116453 * A046590 A226663 A023521

Adjacent sequences:  A046575 A046576 A046577 * A046579 A046580 A046581

KEYWORD

tabf,nonn,frac,less

AUTHOR

Mohammad K. Azarian

EXTENSIONS

More terms from David W. Wilson

STATUS

approved

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Last modified June 25 06:10 EDT 2019. Contains 324347 sequences. (Running on oeis4.)