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A121939 Palindromic numbers that contain the sum of their digits as a substring. 0

%I #2 Mar 30 2012 18:49:08

%S 1,2,3,4,5,6,7,8,9,919,1881,8118,9229,10801,11711,12621,13531,14441,

%T 15351,16261,17171,18081,21612,25152,27972,28882,29792,31513,33133,

%U 41014,41114,41214,41314,41414,41514,41614,41714,41814,41914,51315

%N Palindromic numbers that contain the sum of their digits as a substring.

%t Select[Table[n, {n, 100000}], Length[StringPosition[ToString[ # ], ToString[Plus @@ IntegerDigits[ # ]]]] > 0 && ToString[ # ] == StringReverse[ToString[ # ]] &]

%Y Cf. Palindromic subsequence of A052018 - Sum of digits of n is substring of n.

%K nonn,base

%O 1,2

%A _Tanya Khovanova_, Sep 03 2006

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Last modified July 22 03:36 EDT 2024. Contains 374480 sequences. (Running on oeis4.)