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 A097848 #6 Mar 31 2012 20:17:55 %S A097848 1,1,1,2,1,2,1,2,2,3,1,2,1,2,3,2,3,3,1,2,2,3,1,2,2,2,3,3,1,2,2,3,1,2, %T A097848 2,2,3,2,3,4,4,4,1,2,2,3,1,2,3,3,3,3,2,3,3,3,3,4,1,2,2,2,3,4,1,2,2,3, %U A097848 2,3,3,3,1,2,2,3,2,3,3,4,1,2,2,3,3,2,3,4,2,3,3,3,3,4,4,5,1,2,2 %N A097848 Triangle read by rows: T(n,k) = minimal number of terms needed to write k/n (for 1 <= k <= n with gcd(k,n) = 1) as a sum of unit fractions. %H A097848 <a href="/index/Ed#Egypt">Index entries for sequences related to Egyptian fractions</a> %e A097848 Triangle begins: %e A097848 1 %e A097848 1 %e A097848 1 2 %e A097848 1 2 %e A097848 1 2 2 3 %e A097848 1 2 %e A097848 1 2 3 2 3 3 %e A097848 1 2 2 3 %e A097848 1 2 2 2 3 3 %e A097848 1 2 2 3 %e A097848 1 2 2 2 3 2 3 4 4 4 %e A097848 1 2 2 3 %e A097848 1 2 3 3 3 3 2 3 3 3 3 4 %e A097848 1 2 2 2 3 4 %Y A097848 Cf. A097847, A097849. %K A097848 nonn,tabf %O A097848 1,4 %A A097848 _Franklin T. Adams-Watters_, Aug 31 2004