cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A318472 Multiplicative with a(p^e) = 2^A000045(e).

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%I A318472 #8 Aug 30 2018 08:34:38
%S A318472 1,2,2,2,2,4,2,4,2,4,2,4,2,4,4,8,2,4,2,4,4,4,2,8,2,4,4,4,2,8,2,32,4,4,
%T A318472 4,4,2,4,4,8,2,8,2,4,4,4,2,16,2,4,4,4,2,8,4,8,4,4,2,8,2,4,4,256,4,8,2,
%U A318472 4,4,8,2,8,2,4,4,4,4,8,2,16,8,4,2,8,4,4,4,8,2,8,4,4,4,4,4,64,2,4,4,4,2,8,2,8,8
%N A318472 Multiplicative with a(p^e) = 2^A000045(e).
%H A318472 Antti Karttunen, <a href="/A318472/b318472.txt">Table of n, a(n) for n = 1..16384</a>
%H A318472 <a href="/index/Eu#epf">Index entries for sequences computed from exponents in factorization of n</a>
%F A318472 a(n) = 2^A318471(n).
%o A318472 (PARI) A318472(n) = factorback(apply(e -> 2^fibonacci(e),factor(n)[,2]));
%Y A318472 Cf. A000045, A318471, A318474.
%K A318472 nonn,mult
%O A318472 1,2
%A A318472 _Antti Karttunen_, Aug 29 2018