A046600 First numerator and then denominator of each element of the 1/4-Pascal triangle (by row), excluding 1's and 4's.

5, 5, 9, 5, 2, 9, 13, 19, 19, 13, 17, 8, 19, 2, 8, 17, 21, 49, 35, 2, 35, 2, 49, 21, 25, 35, 2, 119, 35, 119, 35, 2, 25, 29, 95, 189, 259, 259, 189, 95, 29, 33, 31, 71, 112, 259, 2, 112, 71, 31, 33, 37, 157, 102, 183, 483, 2, 483, 2, 183, 102, 157, 37, 41, 97, 2, 565, 285

Offset

1,1

Links

Table of n, a(n) for n=1..68.

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: A046567 A199155 A243447 * A344327 A030798 A331502

Adjacent sequences: A046597 A046598 A046599 * A046601 A046602 A046603

Keyword

tabf,nonn

Author

Mohammad K. Azarian

Extensions

More terms from James A. Sellers, Dec 14 1999

Status

approved