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A046547
First denominator and then numerator of the elements to the right of the central elements of the 1/3-Pascal triangle.
0
1, 1, 1, 1, 3, 4, 1, 1, 3, 7, 1, 1, 1, 5, 3, 10, 1, 1, 3, 25, 3, 13, 1, 1, 3, 55, 3, 38, 3, 16, 1, 1, 1, 31, 1, 18, 3, 19, 1, 1, 3, 203, 1, 49, 3, 73, 3, 22, 1, 1, 3, 350, 3, 220, 3, 95, 3, 25, 1, 1, 1, 252, 1, 190, 1, 105, 1, 40, 3, 28, 1, 1, 1, 442, 1, 295
OFFSET
1,5
EXAMPLE
1/1; -->
1/1 1/1; --> 1 1
1/1 1/3 1/1; --> 1 1
1/1 4/3 4/3 1/1; --> 3 4 1 1
1/1 7/3 8/3 7/3 1/1; --> ...
1/1 10/3 5/1 5/1 10/3 1/1;
1/1 13/3 25/3 10/1 25/3 13/3 1/1;
1/1 16/3 38/3 55/3 55/3 38/3 16/3 1/1; ...
CROSSREFS
Cf. A046534.
Sequence in context: A171528 A299924 A131107 * A016453 A238550 A275886
KEYWORD
tabf,nonn,frac,less
EXTENSIONS
Data corrected and extended by Sean A. Irvine, Apr 13 2021
STATUS
approved