A046540 - OEIS

%I #16 Apr 14 2021 03:50:02

%S 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,

%T 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,

%U 1,1,1,1,1,1,1,1,3,1,1,3,3,1,1,1,1,1,1

%N Denominators of the 1/3-Pascal triangle (by row).

%e 1/1; --> 1

%e 1/1  1/1; --> 1 1

%e 1/1  1/3  1/1; --> 1 3 1

%e 1/1  4/3  4/3  1/1; --> 1 3 3 1

%e 1/1  7/3  8/3  7/3  1/1;

%e 1/1 10/3  5/1  5/1 10/3  1/1;

%e 1/1 13/3 25/3 10/1 25/3 13/3  1/1;

%e 1/1 16/3 38/3 55/3 55/3 38/3 16/3 1/1; ...

%Y Cf. A046534.

%K tabl,nonn,frac

%O 1,5

%A _Mohammad K. Azarian_

%E Data corrected and extended by _Sean A. Irvine_, Apr 13 2021