A046566 - OEIS

%I #22 Apr 14 2021 03:47:31

%S 4,4,5,4,5,4,9,2,5,4,9,4,13,4,19,4,19,4,13,4,17,8,2,19,8,4,17,4,21,4,

%T 49,2,35,2,35,4,49,4,21,4,25,2,35,4,119,35,4,119,2,35,4,25,4,29,4,95,

%U 4,189,4,259,4,259,4,189,4,95,4,29,4,33,31,71,112,2

%N First denominator and then numerator of the 1/4-Pascal triangle (by row), excluding 1's.

%e 1/1; -->

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

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

%e 1/1  5/4  5/4  1/1; --> 4 5 4 5

%e 1/1  9/4  5/2  9/4  1/1; --> 4 9 2 5 4 9

%e 1/1 13/4 19/4 19/4 13/4  1/1; --> ...

%e 1/1 17/4  8/1 19/2  8/1 17/4  1/1;

%e 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

%Y Cf. A046563.

%K tabf,nonn,less

%O 1,1

%A _Mohammad K. Azarian_

%E More terms from _Sean A. Irvine_, Apr 13 2021