This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A046603 #9 Jul 02 2025 16:01:57 %S A046603 5,6,5,6,5,11,5,12,5,11,5,16,5,23,5,23,5,16,5,21,5,39,5,46,5,39,5,21, %T A046603 5,26,5,12,17,17,12,26,5,31,5,86,5,29,34,29,86,5,31,5,36,5,117,5,231, %U A046603 5,63,63,231,5,117,5,36,5,41,5,153,5,348,5,546,5,126,546,5,348,5,153,5 %N A046603 First numerator and then denominator of each element of the 1/5-Pascal triangle (by row), excluding 1's. %e A046603 1/1; 1/1 1/1; 1/1 1/5 1/1; 1/1 6/5 6/5 1/1; 1/1 11/5 12/5 11/5 1/1; 1/1 16/5 23/5 23/5 16/5 1/1; 1/1 21/5 39/5 46/5 39/5 21/5 1/1; 1/1 26/5 12/1 17/1 17/1 12/1 26/5 1/1; ... %Y A046603 Cf. A046601. %K A046603 tabf,nonn %O A046603 1,1 %A A046603 _Mohammad K. Azarian_ %E A046603 More terms from _James Sellers_, Dec 14 1999