A055391 - OEIS

%I #15 Nov 12 2024 11:11:16

%S 2,1,3,4,7,11,167761

%N Palindromic Lucas numbers (in the order of appearance).

%C Perhaps 167761 is the last term?

%C No other terms through L(10000) - _James A. Sellers_, Jul 07 2000

%C No further terms through L(200000). - _Lior Manor_, Oct 18 2007

%e 11 is the sixth Lucas number and it is also palindromic in base 10.

%t Select[LucasL[Range[0,200]],PalindromeQ] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, May 26 2018 *)

%Y Cf. A000032, A045504.

%K nonn,base

%O 1,1

%A M. Harminc (harminc(AT)duro.science.upjs.sk), Jul 06 2000