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%I #11 Jan 06 2025 10:57:30
%S 9,21,27,39,39,49,45,57,69,97,79,93,75,119,81,99,99,129,163,129,111,
%T 147,117,139,159,185,129,211,181,183,169,147,229,189,165,225,199,171,
%U 287,237,249,219,329,189,295,255,325,201,317,207,349,249,291,309,225,313
%N a(n) is the deficiency of A046389(n), divided by 2.
%H Hugo Pfoertner, <a href="/A379916/b379916.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) = (2*A046389(n) - sigma(A046389(n))/2, where sigma is A000203.
%F a(n) = (A033879(A046389(n))/2.
%o (PARI) \\ uses function a379915_17 from A379917
%o a379915_17(1210,3)
%Y Cf. A000203, A033879, A046389, A379915, A379917.
%K nonn,new
%O 1,1
%A _Hugo Pfoertner_, Jan 06 2025