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Numbers k for which A327860(k) is a multiple of 4, where A327860 is the arithmetic derivative of the primorial base exp-function.
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%I #8 Jan 21 2024 09:36:58

%S 0,8,16,24,36,44,52,64,72,80,88,92,100,108,116,120,128,136,144,156,

%T 164,172,184,192,200,208,216,224,232,244,252,260,268,272,280,288,296,

%U 300,308,316,324,336,344,352,364,372,380,388,392,400,408,416,424,432,440,448,452,460,468,476,480,488,496,504,516,524

%N Numbers k for which A327860(k) is a multiple of 4, where A327860 is the arithmetic derivative of the primorial base exp-function.

%H <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a>

%o (PARI) \\ See A369034.

%Y Cf. A327860, A369034 (characteristic function).

%Y Setwise difference A008586 \ A369037.

%Y Positions of 0's in A353630. Positions of multiples of 4 in A345000.

%K nonn

%O 1,2

%A _Antti Karttunen_, Jan 20 2024