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A083826 Smallest k such that k+ 9*(A000042(n-1)*{n, mod 10) is digit reversal of k. A000042(n) = (10^n-1)/9.,a(10n) = 0. 0

%I #10 Jan 04 2024 01:51:51

%S 12,13,14,15,16,17,18,19,90,0,100,103,104,105,106,107,108,109,900,0,

%T 1000

%N Smallest k such that k+ 9*(A000042(n-1)*{n, mod 10) is digit reversal of k. A000042(n) = (10^n-1)/9.,a(10n) = 0.

%e a(13) = 104, 104 + 9*11*(13 mod 10) = 104 + 9*11*3 = 104 + 297 = 401.

%K base,easy,nonn,uned

%O 1,1

%A _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 09 2003

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)