A046594 First denominator and then numerator of each element of the 1/4-Pascal triangle (by row), excluding 2's and 4's.

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 1, 1, 9, 5, 9, 1, 1, 1, 1, 13, 19, 19, 13, 1, 1, 1, 1, 17, 1, 8, 19, 1, 8, 17, 1, 1, 1, 1, 21, 49, 35, 35, 49, 21, 1, 1, 1, 1, 25, 35, 119, 1, 35, 119, 35, 25, 1, 1, 1, 1, 29, 95, 189, 259, 259, 189, 95, 29, 1

Offset

1,14

Links

Table of n, a(n) for n=1..76.

Example

1/1; --> 1 1
1/1 1/1;  --> 1 1 1 1
1/1 1/4 1/1; --> 1 1 1 1 1
1/1 5/4 5/4 1/1;  --> 1 1 5 5 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: A028277 A046582 A046581 * A046585 A046584 A046599

Adjacent sequences: A046591 A046592 A046593 * A046595 A046596 A046597

Keyword

tabf,nonn,less

Author

Mohammad K. Azarian

Extensions

More terms from Sean A. Irvine, Apr 13 2021

Status

approved