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 A046201 #10 Jul 02 2025 16:01:56 %S A046201 1,3,5,7,105,9,11,495,13,6435,15,1365,15015,45045,17,19,2907,21, %T A046201 101745,23,5313,168245,1716099,25,18386775,27,8775,42181425,143416845, %U A046201 29,593775,90135045,882230895,31,13485,849555,18407025,181440675 %N A046201 Distinct odd numbers in the triangle of denominators in Leibniz's Harmonic Triangle. %D A046201 L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 83, Problem 25. %e A046201 1/1; 1/2, 1/2; 1/3, 1/6, 1/3; 1/4, 1/12, 1/12, 1/4; 1/5, 1/20, 1/30, 1/20, 1/5; ... %Y A046201 Cf. A003506, A046202. %K A046201 tabf,nonn,easy %O A046201 1,2 %A A046201 _Mohammad K. Azarian_ %E A046201 More terms from _James Sellers_, Dec 13 1999