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A046537 First denominator and then numerator of the 1/3-Pascal triangle (by row), excluding 1's. 0
3, 3, 4, 3, 4, 3, 7, 3, 8, 3, 7, 3, 10, 5, 5, 3, 10, 3, 13, 3, 25, 10, 3, 25, 3, 13, 3, 16, 3, 38, 3, 55, 3, 55, 3, 38, 3, 16, 3, 19, 18, 31, 3, 110, 31, 18, 3, 19, 3, 22, 3, 73, 49, 3, 203, 3, 203, 49, 3, 73, 3, 22, 3, 25, 3, 95, 3, 220, 3, 350, 3, 406, 3, 350, 3, 220, 3, 95, 3, 25 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..80.

EXAMPLE

1/1; -->

1/1 1/1; -->

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

1/1 4/3 4/3 1/1; --> 3 4 3 4

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: A276864 A342928 A236442 * A167596 A216190 A267592

Adjacent sequences:  A046534 A046535 A046536 * A046538 A046539 A046540

KEYWORD

tabf,nonn,easy,frac,less

AUTHOR

Mohammad K. Azarian

EXTENSIONS

Corrected and extended by Larry Reeves (larryr(AT)acm.org), Apr 06 2000

STATUS

approved

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Last modified June 18 01:16 EDT 2021. Contains 345098 sequences. (Running on oeis4.)