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 A374050 #8 Jun 28 2024 09:09:33 %S A374050 3,5,11,13,19,21,23,27,31,35,37,43,45,47,51,59,61,71,73,75,77,83,85, %T A374050 87,89,91,99,101,103,109,113,117,123,125,131,133,137,145,147,149,151, %U A374050 159,161,163,165,167,171,179,181,187,189,193,195,197,201,205,207,211,217,221,223,229,233,237,241,243,245,251,259 %N A374050 Numbers k for which A328846(k) is odd, where A328846 is the second Fibonacci based variant of arithmetic derivative. %H A374050 Antti Karttunen, <a href="/A374050/b374050.txt">Table of n, a(n) for n = 1..12000</a> %H A374050 <a href="/index/Pri#prime_indices">Index entries for sequences related to prime indices in the factorization of n</a> %o A374050 (PARI) isA374050(n) = !A374048(n); %Y A374050 Indices of 0's in A374048, which is the characteristic function of complement, A374049. %Y A374050 Cf. A328846. %Y A374050 Cf. also A374047. %K A374050 nonn %O A374050 1,1 %A A374050 _Antti Karttunen_, Jun 28 2024