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A046225
First numerator and then denominator of elements to right of central elements of 1/2-Pascal triangle.
0
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
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
KEYWORD
tabf,nonn,frac,less
EXTENSIONS
More terms from Sean A. Irvine, Apr 07 2021
STATUS
approved