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 A097847 #13 Jan 11 2020 15:23:25 %S A097847 1,1,1,1,2,1,1,1,2,1,1,2,2,3,1,1,1,1,2,2,1,1,2,3,2,3,3,1,1,1,2,1,2,2, %T A097847 3,1,1,2,1,2,2,2,3,3,1,1,1,2,2,1,2,2,3,3,1,1,2,2,2,3,2,3,4,4,4,1,1,1, %U A097847 1,1,2,1,2,2,2,2,3,1,1,2,3,3,3,3,2,3,3,3,3,4,1,1,1,2,2,2,3,1,2 %N A097847 Triangle read by rows: T(n,k) = minimal number of terms needed to write k/n (for 1 <= k <= n) as a sum of unit fractions. %H A097847 <a href="/index/Ed#Egypt">Index entries for sequences related to Egyptian fractions</a> %F A097847 T(n, n-1) = A330808(n). - _Jon E. Schoenfield_, Jan 11 2020 %e A097847 Triangle begins: %e A097847 1 %e A097847 1 1 %e A097847 1 2 1 %e A097847 1 1 2 1 %e A097847 1 2 2 3 1 %e A097847 1 1 1 2 2 1 %e A097847 1 2 3 2 3 3 1 %e A097847 1 1 2 1 2 2 3 1 %e A097847 1 2 1 2 2 2 3 3 1 %e A097847 1 1 2 2 1 2 2 3 3 1 %e A097847 1 2 2 2 3 2 3 4 4 4 1 %Y A097847 Cf. A097848, A097849, A330808. %Y A097847 Row sums give A270429. %K A097847 nonn,tabl %O A097847 1,5 %A A097847 _Franklin T. Adams-Watters_, Aug 31 2004