A346476 - OEIS

%I #20 Oct 18 2021 14:08:48

%S 1,1,1,-1,3,-3,3,-5,-7,-7,9,-9,9,-11,-5,-13,15,-15,15,-17,-13,-19,17,

%T -21,1,-23,-11,-25,27,-27,25,-29,-19,-31,-7,-33,33,-35,-17,-37,39,-39,

%U 39,-41,-25,-43,41,-45,-23,-47,-23,-49,47,-51,19,-53,-31,-55,57,-57,55,-59,-29,-61,11,-63,63,-65,-37

%N a(n) = 2*n - A250469(n).

%H Antti Karttunen, <a href="/A346476/b346476.txt">Table of n, a(n) for n = 1..10000</a>

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

%F a(n) = A280692(n) - A252748(n).

%F a(n) = A033879(n) - A346473(n).

%F a(n) = A346478(n) - A346477(n).

%F a(n) = n - A347378(n).

%F a(A000040(n)) = -A252748(A000040(n)) = -A346477(A000040(n)) = A062234(n).

%o (PARI) A346476(n) = (n+n-A250469(n));

%Y Cf. A000040, A033879, A062234, A250469, A252748, A280692, A346473, A346477 (Dirichlet inverse), A346478, A347378.

%K sign,look

%O 1,5

%A _Antti Karttunen_, Jul 29 2021