cp's OEIS Frontend

A046588 Distinct numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/4-Pascal triangle (by row).

%I A046588 #9 Jul 02 2025 16:01:57
%S A046588 1,5,4,9,19,13,8,17,35,2,49,21,119,25,259,189,95,29,112,71,31,33,483,
%T A046588 183,102,157,37,849,285,565,97,41,1815,1419,1705,759,235,45,1617,4543,
%U A046588 616,497,70,3432,11011,7007,1729,637,329,53,24739,9009,10465,1183,1603
%N A046588 Distinct numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/4-Pascal triangle (by row).
%e A046588 1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...
%Y A046588 Cf. A046563.
%K A046588 tabf,nonn
%O A046588 1,2
%A A046588 _Mohammad K. Azarian_
%E A046588 More terms from _James Sellers_, Dec 14 1999