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A369029 Exponential of Mangoldt function permuted by A253565.

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%I A369029 #12 Jan 24 2024 18:33:44
%S A369029 1,2,3,2,5,3,1,2,7,5,1,3,1,1,1,2,11,7,1,5,1,1,1,3,1,1,1,1,1,1,1,2,13,
%T A369029 11,1,7,1,1,1,5,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,17,13,
%U A369029 1,11,1,1,1,7,1,1,1,1,1,1,1,5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1,1
%N A369029 Exponential of Mangoldt function permuted by A253565.
%C A369029 Also LCM-transform of A253565 (when viewed as an offset-1 sequence), because A253565 has the S-property explained in the comments of A368900.
%H A369029 Antti Karttunen, <a href="/A369029/b369029.txt">Table of n, a(n) for n = 0..65537</a>
%H A369029 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>
%F A369029 a(n) = A014963(A253565(n)).
%F A369029 a(0) = 1, and for n > 0, a(n) = lcm {1..A253565(n)} / lcm {1..A253565(n-1)}. [LCM-transform, see comments]
%o A369029 (PARI)
%o A369029 A014963(n) = { ispower(n, , &n); if(isprime(n), n, 1); };
%o A369029 A061395(n) = if(1==n, 0, primepi(vecmax(factor(n)[, 1])));
%o A369029 A253550(n) = if(1==n, 1, (n/prime(A061395(n)))*prime(1+A061395(n)));
%o A369029 A253560(n) = if(1==n, 1, (n*prime(A061395(n))));
%o A369029 A253565(n) = if(n<2,(1+n),if(!(n%2),A253550(A253565(n/2)),A253560(A253565((n-1)/2))));
%o A369029 A369029(n) = A014963(A253565(n));
%Y A369029 Cf. A014963, A253565, A368900, A369028, A369030, A369053.
%K A369029 nonn
%O A369029 0,2
%A A369029 _Antti Karttunen_, Jan 12 2024