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Search: id:A060792
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%I A060792
%S A060792 1,6643,1422773,5415589,90396755477,381920985378904469,
%T A060792 1922624336133018996235
%N A060792 Numbers that are palindromic in bases 2 and 3.
%e A060792 6643 is okay, since 6643 is (1100111110011) in base 2 and (1001001) in 
               base 3
%e A060792 Base2::1422773=101011011010110110101 Base3::1422773=2200021200022 [From 
               Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 19 2009]
%t A060792 f2[n_Integer]:=IntegerDigits[n,2]==Reverse[IntegerDigits[n,2]]; f3[n_Integer]:=IntegerDigits[n,
               3]==Reverse[IntegerDigits[n,3]]; lst={};Do[If[f2[n]&&f3[n],AppendTo[lst,
               n]],{n,12!}];lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), 
               Sep 19 2009]
%Y A060792 A060792(2) = A048268(2) = A056749(3)
%Y A060792 Sequence in context: A164971 A048268 A043634 this_sequence A119519 A131645 
               A015310
%Y A060792 Adjacent sequences: A060789 A060790 A060791 this_sequence A060793 A060794 
               A060795
%K A060792 nonn,base
%O A060792 1,2
%A A060792 Ulrich Schimke (ulrschimke(AT)aol.com)
%E A060792 a(6) found by Francois Boisson, using a Caml program running on an AMD-64 
               machine. - Bruno Petazzoni, program co-author, Jan 31 2006. a(7) 
               from the same source, May 26, 2006

    
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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