A046225 First numerator and then denominator of elements to right of central elements of 1/2-Pascal triangle.

1, 1, 1, 1, 3, 2, 1, 1, 5, 2, 1, 1, 11, 2, 7, 2, 1, 1, 9, 1, 9, 2, 1, 1, 20, 1, 27, 2, 11, 2, 1, 1, 67, 2, 19, 1, 13, 2, 1, 1, 147, 2, 105, 2, 51, 2, 15, 2, 1, 1, 126, 1, 78, 1, 33, 1, 17, 2, 1, 1, 273, 1, 204, 1, 111, 1, 83, 2, 19, 2, 1, 1, 477, 1, 315, 1

Offset

1,5

Links

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

Example

1/1; -->
1/1 1/1; --> 1 1
1/1 1/2 1/1; --> 1 1
1/1 3/2 3/2 1/1; --> 3 2 1 1
1/1 5/2 3/1 5/2 1/1; --> ...
1/1 7/2 11/2 11/2 7/2 1/1;
1/1 9/2 9/1 11/1 9/1 9/2 1/1;
1/1 11/2 27/2 20/1 20/1 27/2 11/2 1/1; ...

Crossrefs

Cf. A046213.

Sequence in context: A369589 A350733 A351073 * A269233 A123396 A225800

Adjacent sequences: A046222 A046223 A046224 * A046226 A046227 A046228

Keyword

tabf,nonn,frac,less

Author

Mohammad K. Azarian

Extensions

More terms from Sean A. Irvine, Apr 07 2021

Status

approved