%I #27 Oct 15 2024 12:22:14
%S 1,2,3,4,5,6,7,8,9,11,22,33,44,55,66,77,88,99,101,111,121,131,141,151,
%T 161,171,181,191,202,212,222,232,242,252,262,272,282,292,303,313,323,
%U 333,343,353,363,373,383,393,404,414,424,434,444,454,464,474,484,494,505,515,525,535,545,555,565,575,585,595,606,616,626
%N Numbers which start and end with the same digit in decimal.
%C Supersequence of A002113 and A208259.
%C The first term that is not a palindromic number is a(109) = 1011. - _Alonso del Arte_, Nov 01 2013
%C Primes in this sequence are A077652. - _Jonathan Vos Post_, Nov 02 2013
%H Charles R Greathouse IV, <a href="/A227858/b227858.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) = 10n + O(1). - _Charles R Greathouse IV_, Nov 01 2013
%t Select[Range[700],IntegerDigits[#][[1]]==IntegerDigits[#][[-1]]&] (* _Harvey P. Dale_, Nov 28 2019 *)
%o (PARI) is(n)=n=digits(n);n[1]==n[#n] \\ _Charles R Greathouse IV_, Nov 01 2013
%Y Cf. A002113, A077652, A208259.
%K nonn,easy,base
%O 1,2
%A Brian E. Foose and _Todd R. Haldeman_, Nov 01 2013