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A046538 First denominator and then numerator of the 1/3-Pascal triangle (by row), excluding 1's and 3's. 0
4, 4, 7, 8, 7, 10, 5, 5, 10, 13, 25, 10, 25, 13, 16, 38, 55, 55, 38, 16, 19, 18, 31, 110, 31, 18, 19, 22, 73, 49, 203, 203, 49, 73, 22, 25, 95, 220, 350, 406, 350, 220, 95, 25, 28, 40, 105, 190, 252, 252, 190, 105, 40, 28, 31, 148, 145, 295, 442, 504, 442, 295 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..62.

EXAMPLE

1/1; -->

1/1  1/1; -->

1/1  1/3  1/1; -->

1/1  4/3  4/3  1/1; --> 4 4

1/1  7/3  8/3  7/3  1/1; --> 7 8 7

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: A238391 A049647 A263619 * A107432 A198991 A214990

Adjacent sequences:  A046535 A046536 A046537 * A046539 A046540 A046541

KEYWORD

tabf,nonn,less

AUTHOR

Mohammad K. Azarian

EXTENSIONS

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

STATUS

approved

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Last modified June 23 05:11 EDT 2021. Contains 345395 sequences. (Running on oeis4.)