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A078244 Smallest multiple of n using only digits 0 and 5. 3

%I

%S 5,50,555,500,5,5550,5005,5000,555555555,50,55,55500,5005,50050,555,

%T 50000,55505,5555555550,55005,500,50505,550,550505,555000,50,50050,

%U 5505555555,500500,5505505,5550,555055,500000,555555,555050,5005

%N Smallest multiple of n using only digits 0 and 5.

%C a(n) = min{A169964(k): k > 1 and A169964(k) mod n = 0}. [_Reinhard Zumkeller_, Jan 10 2012]

%H Reinhard Zumkeller, <a href="/A078244/b078244.txt">Table of n, a(n) for n = 1..998</a>

%o (Haskell)

%o a078244 n = head [x | x <- tail a169964_list, mod x n == 0]

%o -- _Reinhard Zumkeller_, Jan 10 2012

%Y Cf. A004290, A078241-A078248, A079339, A096681-A096688.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Nov 23 2002

%E More terms from _Ray Chandler_, Jul 12 2004

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Last modified April 23 06:08 EDT 2019. Contains 322381 sequences. (Running on oeis4.)