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A323507 a(n) = A322827(n) / A322827(floor(n/2)). 4

%I #5 Jan 17 2019 17:20:09

%S 1,2,3,2,6,5,3,2,6,5,7,30,6,5,3,2,6,5,7,30,210,11,7,30,6,5,7,30,6,5,3,

%T 2,6,5,7,30,210,11,7,30,210,11,13,2310,210,11,7,30,6,5,7,30,210,11,7,

%U 30,6,5,7,30,6,5,3,2,6,5,7,30,210,11,7,30,210,11,13,2310,210,11,7,30,210,11,13,2310,30030,17,13,2310,210,11,13,2310

%N a(n) = A322827(n) / A322827(floor(n/2)).

%H Antti Karttunen, <a href="/A323507/b323507.txt">Table of n, a(n) for n = 0..16383</a>

%F a(n) = A322827(n) / A322827(floor(n/2)).

%o (PARI)

%o A322827(n) = if(!n,1,my(bits = Vecrev(binary(n)), rl=1, o = List([])); for(i=2,#bits,if(bits[i]==bits[i-1], rl++, listput(o,rl))); listput(o,rl); my(es=Vecrev(Vec(o)), m=1); for(i=1,#es,m *= prime(i)^es[i]); (m));

%o A323507(n) = A322827(n)/A322827(n>>1);

%Y Cf. A322827.

%Y Cf. A323503, A323504 (bisections).

%K nonn

%O 0,2

%A _Antti Karttunen_, Jan 17 2019

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Last modified July 16 18:33 EDT 2024. Contains 374358 sequences. (Running on oeis4.)