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 A167211 #11 Aug 20 2025 16:29:06
%S A167211 1,2,3,4,5,6,7,8,11,13,15,16,17,19,21,23,29,31,32,33,37,39,40,41,43,
%T A167211 47,48,51,53,57,59,61,64,67,69,71,73,78,79,83,87,89,93,97,101,103,107,
%U A167211 109,111,113,123,127,128,129,130,131,132,137,139,141,149,151,157
%N A167211 Numbers k such that number of perfect partitions of k-1 divides k.
%H A167211 Amiram Eldar, <a href="/A167211/b167211.txt">Table of n, a(n) for n = 1..10000</a>
%F A167211 {n: A002033(n-1) | n}.
%t A167211 f[1] = 1; f[n_] := f[n] = DivisorSum[n, f[#] &, # < n &]; Select[Range[100], Divisible[#, f[#]] &] (* _Amiram Eldar_, Dec 30 2019 *)
%Y A167211 Cf. A002033, A007694, A033950.
%K A167211 nonn
%O A167211 1,2
%A A167211 _Juri-Stepan Gerasimov_, Oct 30 2009
%E A167211 Definition corrected by _R. J. Mathar_, May 21 2010
%E A167211 More terms from _Amiram Eldar_, Dec 30 2019