This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A379916 #14 Mar 31 2025 22:58:37 %S A379916 9,21,27,39,39,49,45,57,69,97,79,93,75,119,81,99,99,129,163,129,111, %T A379916 147,117,139,159,185,129,211,181,183,169,147,229,189,165,225,199,171, %U A379916 287,237,249,219,329,189,295,255,325,201,317,207,349,249,291,309,225,313 %N A379916 a(n) is the deficiency of A046389(n), divided by 2. %H A379916 Hugo Pfoertner, <a href="/A379916/b379916.txt">Table of n, a(n) for n = 1..10000</a> %F A379916 a(n) = (2*A046389(n) - sigma(A046389(n)))/2, where sigma is A000203. %F A379916 a(n) = A033879(A046389(n))/2. %o A379916 (PARI) \\ uses function a379915_17 from A379917 %o A379916 a379915_17(1210,3) %Y A379916 Cf. A000203, A033879, A046389, A379915, A379917. %K A379916 nonn %O A379916 1,1 %A A379916 _Hugo Pfoertner_, Jan 06 2025