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%I #19 Sep 08 2022 08:44:33
%S 0,1,1,2,3,5,11,16,30,46,106,155,264,452,1046,1531,2610,4441,10351,
%T 15122,25503,43625,102431,146356,252120,431506,1013626,1445435,
%U 2462364,4241132,10033526,14304661,24341520
%N Fibonacci numbers written in base 7.
%H Vincenzo Librandi, <a href="/A004690/b004690.txt">Table of n, a(n) for n = 0..1000</a>
%t Table[BaseForm[Fibonacci[n],7],{n,1,20,1}] (* _Vladimir Joseph Stephan Orlovsky_, Jul 23 2008 *)
%t FromDigits[IntegerDigits[#, 7]] & / @ Fibonacci[Range[0, 40]] (* _Vincenzo Librandi_, Jun 08 2013 *)
%o (PARI) a(n)=fromdigits(digits(fibonacci(n),7)) \\ _Charles R Greathouse IV_, Oct 28 2014
%o (Magma) [Seqint(Intseq(Fibonacci(n),7)): n in [0..50]]; // _G. C. Greubel_, Oct 09 2018
%Y Cf. A000045 (Fibonacci), A007093 (numbers in base 7).
%K nonn,base,easy
%O 0,4
%A _N. J. A. Sloane_
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