# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a353566 Showing 1-1 of 1 %I A353566 #8 Apr 29 2022 15:55:39 %S A353566 1,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, %T A353566 0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0, %U A353566 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,1 %N A353566 a(n) = 1 if n is a multiple of its prime shadow A181819(n), and 0 otherwise. %H A353566 Antti Karttunen, Table of n, a(n) for n = 1..65537 %H A353566 Index entries for characteristic functions %F A353566 a(n) = 1 if 0 == n mod A181819(n), and 0 otherwise. %o A353566 (PARI) A353566(n) = (0==(n%factorback(apply(e->prime(e),(factor(n)[,2]))))); %Y A353566 Characteristic function of A325755. %Y A353566 Cf. A181819, A353567 (inverse Möbius transform). %K A353566 nonn %O A353566 1 %A A353566 _Antti Karttunen_, Apr 29 2022 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE