A295309 - OEIS

%I #6 Nov 22 2017 20:48:21

%S 0,0,1,0,1,1,1,0,0,1,1,0,1,1,1,0,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,

%T 1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,

%U 1,1,1,0,1,1,1,1,1,1,1,1,0,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1

%N Characteristic function for A295307: a(n) = 1 if n > phi(sigma(n)), 0 otherwise.

%H Antti Karttunen, <a href="/A295309/b295309.txt">Table of n, a(n) for n = 1..65537</a>

%H <a href="/index/Ch#char_fns">Index entries for characteristic functions</a>

%F a(n) = 1 if n > A062401(n), 0 otherwise.

%Y Cf. A000010, A000203, A062401, A295301, A295307, A295308.

%K nonn

%O 1

%A _Antti Karttunen_, Nov 22 2017