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.
%I A004692 #22 Sep 08 2022 08:44:33 %S A004692 0,1,1,2,3,5,8,14,23,37,61,108,170,278,458,747,1316,2164,3481,5655, %T A004692 10246,16012,26258,43271,70540,123821,204461,328382,533853,863345, %U A004692 1507308,2471654,4080063,6561727,11651801,18323628,31075530,50410258,81485788 %N A004692 Fibonacci numbers written in base 9. %H A004692 Vincenzo Librandi, <a href="/A004692/b004692.txt">Table of n, a(n) for n = 0..1000</a> %t A004692 FromDigits[IntegerDigits[#, 9]] & / @ Fibonacci[Range[0, 40]] (* _Vincenzo Librandi_, Jun 08 2013 *) %o A004692 (Magma) [Seqint(Intseq(Fibonacci(n),9)): n in[0 .. 45]]; // _Vincenzo Librandi_, Sep 23 2017 %o A004692 (PARI) vector(50, n, n--; fromdigits(digits(fibonacci(n), 9))) \\ _G. C. Greubel_, Oct 09 2018 %Y A004692 Cf. A000045 (Fibonacci), A007095 (numbers in base 9). %K A004692 nonn,base,easy %O A004692 0,4 %A A004692 _N. J. A. Sloane_