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 A324520 #5 Mar 07 2019 23:25:42 %S A324520 0,1,0,1,2,2,3,3,7,6,11,12,15,21,25,31,43,49,58,79,89,108,135,165,190, %T A324520 232,279,328,387,461,536,650,743,870,1029,1202,1381,1613,1864,2163, %U A324520 2505,2875,3292,3829,4367,5001,5746,6538,7462,8533,9714,11008,12527,14196 %N A324520 Number of integer partitions of n > 0 where the minimum part equals the number of parts minus the number of distinct parts. %C A324520 The Heinz numbers of these integer partitions are given by A324519. %e A324520 The a(2) = 1 through a(11) = 11 integer partitions: %e A324520 (11) (211) (221) (222) (331) (611) (441) (811) (551) %e A324520 (311) (411) (511) (3221) (711) (3322) (911) %e A324520 (3211) (4211) (3222) (4222) (3332) %e A324520 (3321) (5221) (4331) %e A324520 (4221) (5311) (4421) %e A324520 (4311) (6211) (5222) %e A324520 (5211) (5411) %e A324520 (6221) %e A324520 (6311) %e A324520 (7211) %e A324520 (43211) %t A324520 Table[Length[Select[IntegerPartitions[n],Min@@#==Length[#]-Length[Union[#]]&]],{n,30}] %Y A324520 Cf. A003114, A006141, A039900, A046660, A047993, A064174, A090858, A133121. %Y A324520 Cf. A324516, A324518, A324519, A324520. %K A324520 nonn %O A324520 1,5 %A A324520 _Gus Wiseman_, Mar 06 2019