Search: id:A145829
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%I A145829
%S A145829 1,4,1,15,0,16,20,31,16,49,65,224,96,96,337,144,720,400,945,625,928,828,
%T A145829 367,928,1889,624,2609,3568,3568,2064,10273,1040,545,12384,12639,56800,
%U A145829 25812,15119,36,864,144383,146463,195440,61391,61072,61072,58128,25872
%N A145829 Square root of squares in A145768 (XOR of squares of the numbers 1...n).
%o A145829 (PARI) an=0; for( i=1,10^4, an=bitxor(an,i^2); issquare(an) & print1(sqrtint(an)",
               "))
%Y A145829 a(n) = A000196( A145828(n)) = A000196( A145768( A145827(n))); A145828 
               = { a(n)^2 } = A145768 intersect A000290.
%Y A145829 Sequence in context: A051928 A050156 A096644 this_sequence A016115 A164794 
               A107873
%Y A145829 Adjacent sequences: A145826 A145827 A145828 this_sequence A145830 A145831 
               A145832
%K A145829 easy,nice,nonn
%O A145829 1,2
%A A145829 M. F. Hasler (MHasler(AT)univ-ag.fr), Oct 20 2008

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