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.

A316527 Fibonacci numbers whose sum of digits is not a prime.

This page as a plain text file.
%I A316527 #26 Sep 08 2022 08:46:22
%S A316527 0,1,8,13,55,144,233,987,1597,4181,6765,10946,28657,46368,317811,
%T A316527 2178309,3524578,9227465,14930352,24157817,39088169,102334155,
%U A316527 267914296,701408733,1836311903,4807526976,7778742049,12586269025,32951280099,139583862445,225851433717
%N A316527 Fibonacci numbers whose sum of digits is not a prime.
%t A316527 Rest[Select[Fibonacci[Range[100]], !PrimeQ[Total[IntegerDigits[#]]]&]]
%o A316527 (Magma) [Fibonacci(n): n in [2..80] | not IsPrime(&+Intseq(Fibonacci(n)))];
%o A316527 (GAP) S:=List(List(List([2..60],Fibonacci),ListOfDigits),Sum);;
%o A316527 a:=[];; for i in [1..Length(S)] do if not IsPrime(S[i]) then Add(a,Fibonacci(i+1)); fi; od; a:=Concatenation([0],a); # _Muniru A Asiru_, Jul 12 2018
%Y A316527 Complement of A065398 within A000045.
%Y A316527 Cf. A178837.
%K A316527 nonn,base
%O A316527 1,3
%A A316527 _Vincenzo Librandi_, Jul 11 2018