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 A097795 #4 Feb 16 2025 08:32:54 %S A097795 0,0,1,0,0,1,0,0,1,0,0,1,0,1,1,0,1,1,0,1,1,0,1,1,0,1,1,1,1,1,1,1,1,1, %T A097795 1,1,1,1,1,1,1,2,1,1,2,1,1,2,1,1,2,1,1,2,1,2,2,1,2,2,1,2,2,1,2,2,1,2, %U A097795 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,2,2,3,2,2,3,2,2,3,2,2,3,2,3,3,2,3,3,2,3,3 %N A097795 Number of partitions of 2*n into perfect numbers. %C A097795 a(n) = A097796(2*n). %H A097795 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PerfectNumber.html">Perfect Number</a> %H A097795 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Partition.html">Partition</a> %e A097795 a(45)=2: 2*45 = 90 = 15*6 = 15*A000396(1) = 3*28 + 1*6 = 3*A000396(2) + 1*A000396(1). %Y A097795 Cf. A000396, A000041, A058696, A080225. %K A097795 nonn %O A097795 1,42 %A A097795 _Reinhard Zumkeller_, Aug 25 2004