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 A241069 #7 May 11 2025 18:53:02 %S A241069 0,0,0,0,0,1,0,1,1,0,2,0,0,1,1,2,1,2,1,3,4,3,3,3,4,6,6,4,6,5,8,8,9,9, %T A241069 10,13,11,13,15,17,20,21,21,24,25,29,30,33,35,40,44,44,49,51,56,61,66, %U A241069 69,77,82,91,95,102,106,116,127,134,147,157,168,182 %N A241069 Number of partitions p of n into distinct parts such that max(p) = 4*min(p). %e A241069 a(10) counts these 2 partitions: 82, 4321. %t A241069 z = 40; f[n_] := f[n] = Select[IntegerPartitions[n], Max[Length /@ Split@#] == 1 &]; %t A241069 Table[Count[f[n], p_ /; Max[p] == 2*Min[p]], {n, 0, z}] (* A241035 *) %t A241069 Table[Count[f[n], p_ /; Max[p] == 3*Min[p]], {n, 0, z}] (* A241063 *) %t A241069 Table[Count[f[n], p_ /; Max[p] == 4*Min[p]], {n, 0, z}] (* A241069 *) %t A241069 Table[Count[f[n], p_ /; Max[p] == 5*Min[p]], {n, 0, z}] (* A241272 *) %t A241069 Table[Count[f[n], p_ /; Max[p] == 6*Min[p]], {n, 0, z}] (* A241273 *) %Y A241069 Cf. A241035, A241063, A241272, A241273. %K A241069 nonn,easy %O A241069 0,11 %A A241069 _Clark Kimberling_, Apr 18 2014