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 A276579 #7 Sep 18 2016 20:08:16 %S A276579 2,3,5,6,7,10,11,13,15,17,19,21,22,23,29,31,35,37,39,41,43,46,47,53, %T A276579 55,59,61,67,71,73,77,79,83,85,87,89,91,97,101,103,107,109,113,118, %U A276579 127,131,133,137,139,143,149,151,155,157,163,167,173,179,181,183,187,191,193,197,199,210,211,221,223,227,229,233 %N A276579 Squarefree numbers larger than one for which A268669(A048675(n)) is a power of two. %C A276579 Terms present in arrays A255483 & A276578, sorted into ascending order. %H A276579 Antti Karttunen, <a href="/A276579/b276579.txt">Table of n, a(n) for n = 1..2000</a> %o A276579 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A276579 (define A276579 (MATCHING-POS 1 1 (lambda (n) (and (> n 1) (not (zero? (A008683 n))) (= 1 (A000120 (A268669 (A048675 n)))))))) %Y A276579 Cf. A000120, A008683, A008966, A048675, A209229, A268669. %Y A276579 Cf. array A255483 (A276578). %Y A276579 Subsequence of A005117. %Y A276579 A000040 is a subsequence. %K A276579 nonn %O A276579 1,1 %A A276579 _Antti Karttunen_, Sep 18 2016