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 A154887 #9 Dec 13 2024 09:41:35
%S A154887 1,2,11,71,838,7915,181443,3529287,130501170,4118232210,269279551654,
%T A154887 9556917233108,1003141976524301,74252913818290142,
%U A154887 14979717449141067931,1451159432555957095630,363482056748832080145666,28348494499719127795555178,10422254792015005991605309232
%N A154887 Number of ways to partition n into distinct reduced fractions i/j with j <= n.
%e A154887 a(3) = #{3, 8/3+1/3, 5/2+1/2, 7/3+2/3, 2+1, 2+2/3+1/3, 5/3+4/3, 5/3+1+1/3, 3/2+1+1/2, 3/2+2/3+1/2+1/3, 4/3+1+2/3} = 11. - corrected by _Reinhard Zumkeller_, Feb 02 2009
%Y A154887 Cf. A143270, A154886, A154888.
%K A154887 nonn
%O A154887 1,2
%A A154887 _Reinhard Zumkeller_, Jan 17 2009
%E A154887 More terms from _Jinyuan Wang_, Dec 13 2024