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 A378650 #8 Dec 04 2024 10:17:06 %S A378650 0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,0,4,0,2,0,0,0,16,0,0,0,0,0,12,0,0,0, %T A378650 0,0,28,0,0,0,12,0,12,0,0,0,0,0,48,0,0,0,0,0,16,0,8,0,0,0,66,0,0,0,0, %U A378650 0,12,0,0,0,4,0,104,0,0,0,0,0,12,0,40,0,0,0,72,0,0,0,4,0,70,0,0,0,0,0,128,0,0,0,20,0,12,0,2,0 %N A378650 a(n) = A378647(n) - n. %H A378650 Antti Karttunen, <a href="/A378650/b378650.txt">Table of n, a(n) for n = 1..20000</a> %o A378650 (PARI) A378650(n) = (A378647(n) - n); %Y A378650 Cf. A103977, A378647, A378653 (inverse Möbius transform). %Y A378650 Cf. A005101 (positions of nonzero terms), A263837 (of 0's). %Y A378650 Cf. also A318679. %K A378650 nonn %O A378650 1,12 %A A378650 _Antti Karttunen_, Dec 03 2024