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 A251046 #4 Nov 30 2014 16:48:22 %S A251046 1,2,3,1,1,10,21,22,3,7,33,34,39,10,51,13,57,58,7,1,69,70,1,82,87,22, %T A251046 93,94,11,1,111,7,13,118,123,31,129,130,141,142,3,37,17,154,159,10,19, %U A251046 43,177,178,183,46,21,190,201,202,23,13,213,214,219,55,237 %N A251046 Squarefree part of A098548(n). %C A251046 a(n) = A007913(A098548(n)). %H A251046 Reinhard Zumkeller, <a href="/A251046/b251046.txt">Table of n, a(n) for n = 1..10000</a> %o A251046 (Haskell) %o A251046 a251046 = a007913 . fromIntegral . a098548 %Y A251046 Cf. A007913, A098548, A251045. %K A251046 nonn %O A251046 1,2 %A A251046 _Reinhard Zumkeller_, Nov 30 2014