A046583 - OEIS

A046583

First denominator and then numerator of each element to the right of the central elements of the 1/4-Pascal triangle (by row), excluding 4's.

1, 1, 1, 1, 5, 1, 1, 9, 1, 1, 19, 13, 1, 1, 1, 8, 17, 1, 1, 2, 35, 49, 21, 1, 1, 119, 2, 35, 25, 1, 1, 259, 189, 95, 29, 1, 1, 1, 112, 1, 71, 1, 31, 33, 1, 1, 2, 483, 1, 183, 1, 102, 157, 37, 1, 1, 2, 849, 1, 285, 565, 2, 97, 41, 1, 1, 2, 1815, 2, 1419, 1705, 759, 235, 45, 1, 1, 1

(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: A132048 A141398 A058281 * A046579 A153108 A157174

Adjacent sequences: A046580 A046581 A046582 * A046584 A046585 A046586

KEYWORD

nonn

AUTHOR

Mohammad K. Azarian

EXTENSIONS

More terms from James A. Sellers, Dec 14 1999

STATUS

approved