A276437 - OEIS

%I #9 Sep 12 2016 17:01:59

%S 19,25,31,49,55,59,73,77,79,85,91,101,103,109,113,115,119,121,133,137,

%T 139,143,145,151,161,163,167,169,175,187,191,197,199,203,205,209,221,

%U 229,235,241,247,251,253,259,263,265,269,271,281,287,289,293,295,299,301,311,317,319,323,325,329,341,343,347,349,355,361

%N Numbers n for which A020639(n) <> A272565(n).

%H Antti Karttunen, <a href="/A276437/b276437.txt">Table of n, a(n) for n = 1..3600</a>

%H <a href="/index/Si#sieve">Index entries for sequences generated by sieves</a>

%o (Scheme, with _Antti Karttunen_'s IntSeq-library)

%o (define A276437 (NONZERO-POS 1 1 (lambda (n) (- (A020639 n) (A272565 n)))))

%Y Cf. A020639, A272565.

%Y Complement: A276347.

%Y Disjoint union of A276447 and A276448.

%Y Cf. A276569 (a subsequence).

%K nonn

%O 1,1

%A _Antti Karttunen_, Sep 11 2016