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A046540 Denominators of the 1/3-Pascal triangle (by row). 0
1, 1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 1, 3, 3, 1, 1, 3, 3, 3, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..87.

EXAMPLE

1/1; --> 1

1/1  1/1; --> 1 1

1/1  1/3  1/1; --> 1 3 1

1/1  4/3  4/3  1/1; --> 1 3 3 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: A300867 A269301 A132429 * A123191 A157454 A106255

Adjacent sequences:  A046537 A046538 A046539 * A046541 A046542 A046543

KEYWORD

tabl,nonn,frac

AUTHOR

Mohammad K. Azarian

EXTENSIONS

Data corrected and extended by Sean A. Irvine, Apr 13 2021

STATUS

approved

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Last modified May 6 14:16 EDT 2021. Contains 343586 sequences. (Running on oeis4.)