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A324186 Sum of odd divisors permuted by A163511: a(n) = A000593(A163511(n)). 10

%I #9 Feb 19 2019 00:10:38

%S 1,1,1,4,1,13,4,6,1,40,13,31,4,24,6,8,1,121,40,156,13,124,31,57,4,78,

%T 24,48,6,32,8,12,1,364,121,781,40,624,156,400,13,403,124,342,31,228,

%U 57,133,4,240,78,248,24,192,48,96,6,104,32,72,8,48,12,14,1,1093,364,3906,121,3124,781,2801,40,2028,624,2400,156,1600,400,1464,13,1240,403

%N Sum of odd divisors permuted by A163511: a(n) = A000593(A163511(n)).

%H Antti Karttunen, <a href="/A324186/b324186.txt">Table of n, a(n) for n = 0..16384</a>

%H Antti Karttunen, <a href="/A324186/a324186.txt">Data supplement: n, a(n) computed for n = 0..65537</a>

%F a(n) = A000593(A163511(n)).

%F For n > 0, a(n) = A324056(A054429(n)).

%o (PARI)

%o A000593(n) = sigma(n>>valuation(n, 2)); \\ From A000593

%o A163511(n) = if(!n,1,my(p=2, t=1); while(n>1, if(!(n%2), (t*=p), p=nextprime(1+p)); n >>= 1); (t*p));

%o A324186(n) = A000593(A163511(n));

%Y Cf. A000593, A038712, A054429, A163511, A324056, A324184.

%K nonn

%O 0,4

%A _Antti Karttunen_, Feb 17 2019

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Last modified July 17 10:03 EDT 2024. Contains 374375 sequences. (Running on oeis4.)