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A046214
First denominator and then numerator of 1/2-Pascal triangle (by row).
0
1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 3, 2, 3, 1, 1, 1, 1, 2, 5, 1, 3, 2, 5, 1, 1, 1, 1, 2, 7, 2, 11, 2, 11, 2, 7, 1, 1, 1, 1, 2, 9, 1, 9, 1, 11, 1, 9, 2, 9, 1, 1, 1, 1, 2, 11, 2, 27, 1, 20, 1, 20, 2, 27, 2, 11, 1, 1, 1, 1, 2, 13, 1, 19, 2, 67, 1, 40, 2, 67, 1, 19, 2, 13, 1, 1, 1, 1, 2, 15, 2
OFFSET
1,9
EXAMPLE
1/1; --> 1 1
1/1 1/1; --> 1 1 1 1
1/1 1/2 1/1; --> 1 1 2 1 1 1
1/1 3/2 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: A177457 A373125 A357139 * A232088 A115413 A292435
KEYWORD
tabf,nonn,frac
STATUS
approved