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A046554 First denominator and then numerator of each element to the right of the central elements of the 1/3-Pascal triangle (by row), excluding 3's. 0
1, 1, 1, 1, 4, 1, 1, 7, 1, 1, 1, 5, 10, 1, 1, 25, 13, 1, 1, 55, 38, 16, 1, 1, 93, 1, 18, 19, 1, 1, 203, 147, 73, 22, 1, 1, 350, 220, 95, 25, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..42.

EXAMPLE

1/1; --> 1 1

1/1 1/1; --> 1 1 1 1

1/1 1/3 1/1; --> 1 1 1 1 1

1/1 4/3 4/3 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: A208332 A075112 A202687 * A010321 A046550 A223489

Adjacent sequences:  A046551 A046552 A046553 * A046555 A046556 A046557

KEYWORD

tabf,nonn,frac,less

AUTHOR

Mohammad K. Azarian

STATUS

approved

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Last modified September 18 16:22 EDT 2020. Contains 337170 sequences. (Running on oeis4.)