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A046218 Numerators of elements of 1/2-Pascal triangle (by row). 0
1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 5, 3, 5, 1, 1, 7, 11, 11, 7, 1, 1, 9, 9, 11, 9, 9, 1, 1, 11, 27, 20, 20, 27, 11, 1, 1, 13, 19, 67, 40, 67, 19, 13, 1, 1, 15, 51, 105, 147, 147, 105, 51, 15, 1, 1, 17, 33, 78, 126, 147, 126, 78, 33, 17, 1, 1, 19, 83, 111, 204 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,8
LINKS
EXAMPLE
1/1; --> 1
1/1 1/1; --> 1 1
1/1 1/2 1/1; --> 1 1 1
1/1 3/2 3/2 1/1; --> 1 3 3 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: A362895 A179680 A123562 * A046221 A220837 A187371
KEYWORD
tabl,nonn,frac
AUTHOR
EXTENSIONS
More terms from Sean A. Irvine, Apr 07 2021
STATUS
approved

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Last modified March 19 02:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)