%I #13 Aug 25 2015 16:08:10
%S 1,22,232,3223,22322,232232,3223223,22322322,232232232,3223223223,
%T 22322322322,232232232232,3223223223223,22322322322322,
%U 232232232232232,3223223223223223,22322322322322322,232232232232232232,3223223223223223223
%N Palindromes pertaining to A082204.
%C Perhaps no digits other than 1,2 and 3 occur. From the second term onwards the periodic pattern of two 2's followed by a 3 holds.
%H <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 1001, 0, 0, -1000).
%e The first six palindromes are: 1, 22, 232, 3223,22322, 232232.
%t Join[{1},LinearRecurrence[{0, 0, 1001, 0, 0, -1000},{22, 232, 3223, 22322, 232232, 3223223},18]] (* _Ray Chandler_, Aug 25 2015 *)
%Y Cf. A082204, A082206.
%K base,easy,nonn
%O 1,2
%A _Amarnath Murthy_, Apr 10 2003
%E More terms from _Joshua Zucker_, May 08 2006
|