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A324905 a(n) = A007895(A003965(n)). 4

%I #7 Apr 14 2019 17:22:45

%S 1,1,1,2,1,2,1,1,2,2,1,3,1,2,2,2,1,2,1,3,2,2,1,2,3,2,3,3,1,3,1,3,2,2,

%T 3,2,1,2,2,3,1,3,1,3,3,2,1,3,3,3,2,3,1,4,3,3,2,2,1,2,1,2,4,3,3,3,1,3,

%U 2,4,1,4,1,2,4,3,3,3,1,4,3,2,1,3,3,2,2,3,1,2,3,3,2,2,3,3,1,3,4,3,1,3,1,3,4

%N a(n) = A007895(A003965(n)).

%H Antti Karttunen, <a href="/A324905/b324905.txt">Table of n, a(n) for n = 1..17711</a>

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

%F a(n) = A007895(A003965(n)).

%o (PARI)

%o A003965(n) = { my(f = factor(n)); for(i=1, #f~, f[i, 1] = fibonacci(2+primepi(f[i, 1]))); factorback(f); };

%o A007895(n) = { my(s=0); while(n>0, s++; n -= fibonacci(1+A072649(n))); (s); }

%o A072649(n) = { my(m); if(n<1, 0, m=0; until(fibonacci(m)>n, m++); m-2); }; \\ From A072649

%o A324905(n) = A007895(A003965(n));

%Y Cf. A003965, A007895, A300837, A324888, A324907.

%K nonn

%O 1,4

%A _Antti Karttunen_, Apr 14 2019

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Last modified April 25 11:39 EDT 2024. Contains 371969 sequences. (Running on oeis4.)