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 A133022 #9 Apr 06 2018 07:51:24 %S A133022 0,1,1,4,9,25,64,403,252,1462,3025,8722,63504,77356,291421,9760, %T A133022 778743,12697747,12537568,7584334,38398140,710406346,208476181, %U A133022 2168819074,4004525952,3905576425,47722137553,160019976838,37728297243,474332543035,33479625520 %N A133022 Product of n-th Fibonacci number and n-th Fibonacci number written backwards. %H A133022 G. C. Greubel, <a href="/A133022/b133022.txt">Table of n, a(n) for n = 0..1000</a> %F A133022 a(n) = A000045(n) * A004091(n). %e A133022 403 = 13*31. %p A133022 a:= n-> (f-> (s-> f*parse(cat(s[-i]$i=1..length(s))))( %p A133022 ""||f))(((<<0|1>, <1|1>>^n)[1, 2])): %p A133022 seq(a(n), n=0..30); # _Alois P. Heinz_, Apr 06 2018 %t A133022 #*FromDigits[Reverse[IntegerDigits[#]]]&/@Fibonacci[Range[0,40]] (* _Harvey P. Dale_, Oct 12 2012 *) %Y A133022 Cf. A000045, A004091, A061205, A133019. %K A133022 base,easy,nonn %O A133022 0,4 %A A133022 _Omar E. Pol_, Nov 07 2007 %E A133022 Corrected and extended by _Harvey P. Dale_, Oct 12 2012