Search: id:A002780
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%I A002780 M1736 N0688
%S A002780 0,1,2,7,11,101,111,1001,2201,10001,10101,11011,100001,101101,110011,
%T A002780 1000001,1001001,1100011,10000001,10011001,10100101,11000011,
%U A002780 100000001,100010001,100101001,101000101,110000011,1000000001,1000110001
%N A002780 Numbers whose cube is a palindrome.
%C A002780 a(8)=2201 is the only known nonpalindromic rootnumber.
%D A002780 G. J. Simmons, Palindromic powers, J. Rec. Math., 3 (No. 2, 1970), 93-98.
%D A002780 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002780 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%H A002780 P. De Geest, <a href="http://www.worldofnumbers.com/cube.htm">Palindromic 
               Cubes</a>
%Y A002780 Cf. A002781.
%Y A002780 Sequence in context: A101592 A135066 A085315 this_sequence A069885 A069748 
               A064441
%Y A002780 Adjacent sequences: A002777 A002778 A002779 this_sequence A002781 A002782 
               A002783
%K A002780 base,nonn,nice,easy
%O A002780 1,3
%A A002780 N. J. A. Sloane (njas(AT)research.att.com).
%E A002780 More terms from Patrick De Geest.

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