cp's OEIS Frontend

A374109 Numbers k such that A113177(k) and A328845(k) are not both even, where A113177 is fully additive with a(p) = Fibonacci(p) and A328845 is the first Fibonacci-based variant of the arithmetic derivative.

%I A374109 #6 Jun 29 2024 09:10:04
%S A374109 2,5,6,7,8,10,11,13,14,15,17,18,19,20,21,22,23,24,26,28,29,30,31,32,
%T A374109 33,34,37,38,39,41,42,43,44,45,46,47,50,51,52,53,54,57,58,59,60,61,62,
%U A374109 63,66,67,68,69,70,71,72,73,74,76,78,79,80,82,83,84,86,87,89,90,92,93,94,96,97,98,99,101,102,103,106
%N A374109 Numbers k such that A113177(k) and A328845(k) are not both even, where A113177 is fully additive with a(p) = Fibonacci(p) and A328845 is the first Fibonacci-based variant of the arithmetic derivative.
%H A374109 Antti Karttunen, <a href="/A374109/b374109.txt">Table of n, a(n) for n = 1..12000</a>
%o A374109 (PARI) isA374109(n) = !A374107(n);
%Y A374109 Cf. A113177, A328845, A374107, A374108 (complement).
%Y A374109 Indices of odd terms in A374106.
%Y A374109 Union of A373587 and A374047.
%K A374109 nonn
%O A374109 1,1
%A A374109 _Antti Karttunen_, Jun 29 2024