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A358762 Numbers k for which A349905(k) == 2 (mod 4), where A349905(k) is the arithmetic derivative applied to the prime shifted k. 6

%I #8 Nov 30 2022 16:11:32

%S 4,9,10,14,24,25,33,34,35,38,39,49,54,58,60,64,69,82,84,85,86,88,93,

%T 95,104,106,111,119,121,122,133,134,135,141,143,144,145,146,150,158,

%U 160,169,177,184,189,198,202,203,204,205,206,210,213,215,220,224,226,228,234,248,249,253,254,260,265

%N Numbers k for which A349905(k) == 2 (mod 4), where A349905(k) is the arithmetic derivative applied to the prime shifted k.

%C Numbers k for which A003961(k) is one of the terms of A327862.

%C Numbers k such that A001222(k) == 2*A246260(k) (modulo 4).

%H <a href="/index/Pri#prime_indices">Index entries for sequences computed from indices in prime factorization</a>

%F {k | A010873(A349905(k)) = 2}.

%o (PARI) isA358762(n) = A358752(n);

%Y Cf. A001222, A003415, A003961, A010051, A010873, A246260, A327862, A349905, A358752 (characteristic function).

%Y Setwise difference A028260 \ A358760.

%Y Cf. also A358761, A358763.

%K nonn

%O 1,1

%A _Antti Karttunen_, Nov 29 2022

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Last modified September 8 14:54 EDT 2024. Contains 375753 sequences. (Running on oeis4.)