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A276142 Solutions to x/SOD(x) = y, where x and y are palindromes, a(n)=x. 4

%I #13 Aug 26 2016 23:23:18

%S 1,2,3,4,5,6,7,8,9,279972,2774772,5499945,25477452,27722772,254545452,

%T 277202772,279999972,2133333312,2522772252,2545225452,2772002772,

%U 4266666624,6399999936,21331413312,23466666432,25225452252,25452025452,25479997452,27720002772

%N Solutions to x/SOD(x) = y, where x and y are palindromes, a(n)=x.

%C "SOD" = "sum of digits", A007953.

%C Subset of intersection of A002113 and A005349. - _David A. Corneth_, Aug 23 2016

%H Lars Blomberg, <a href="/A276142/b276142.txt">Table of n, a(n) for n = 1..10000</a>

%H C. Rivera, PrimePuzzles.Net, <a href="http://www.primepuzzles.net/puzzles/puzz_041.htm">Puzzle 41.- Palindromic Carnival</a>, section B.

%e 279972/SOD(279972) = 279972/36 = 7777, so 279972 is a term.

%Y See A276143 for the SOD(x) values.

%Y See A276144 for the y values.

%Y Cf. A002113, A005349, A007953.

%K nonn,base

%O 1,2

%A _Lars Blomberg_, Aug 22 2016

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)