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.

A288252 Positive integers n such that the Fibonacci (or Zeckendorf) representation of n^2 is a palindrome.

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%I A288252 #20 Jun 15 2018 10:14:34
%S A288252 1,2,3,8,21,38,55,80,144,168,174,195,314,377,682,987,2584,6360,6765,
%T A288252 12238,13301,17711,34985,46368,54096,66483,87849,121393,219602,317811,
%U A288252 684704,832040,1486717,2178309,3325460,3940598,5702887,6151102,10008701,14930352
%N A288252 Positive integers n such that the Fibonacci (or Zeckendorf) representation of n^2 is a palindrome.
%C A288252 The sequence is infinite because F(2n)^2 = A049684(n) has Fibonacci (or Zeckendorf) representation (1000)^(n-1) 1.
%H A288252 Giovanni Resta, <a href="/A288252/b288252.txt">Table of n, a(n) for n = 1..60</a>
%e A288252 38 is in the sequence because 38^2 = 1444 has Fibonacci representation 101000101000101, which is a palindrome.
%p A288252 for n from 1 do
%p A288252     zeck := A014417(n^2) ;
%p A288252     if isA002113(zeck) then
%p A288252         printf("%d,\n",n);
%p A288252     end if;
%p A288252 end do: # _R. J. Mathar_, Jun 16 2017
%Y A288252 Cf. A014417, which explains Fibonacci representation. Cf. A094202.
%K A288252 nonn
%O A288252 1,2
%A A288252 _Jeffrey Shallit_, Jun 07 2017
%E A288252 a(35)-a(39) from _Alois P. Heinz_, Jun 14 2018
%E A288252 a(40) from _Giovanni Resta_, Jun 15 2018