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A083428 Smallest prime that can be formed using the digits of first 3n+1 numbers, or 0 if no such number exists. 0

%I #8 Aug 23 2014 15:13:12

%S 1423,1234657,10123457689,10111112233469857,10111111112233445569867,

%T 10111111111112233445566799887,10011111111111122222233445567689987,

%U 10011111111111122222222233344455566879789,10011111111111122222222222233344455566677897889

%N Smallest prime that can be formed using the digits of first 3n+1 numbers, or 0 if no such number exists.

%C The digits of first 3n and first 3n-1 numbers yield a composite number which is a multiple of 3. Conjecture: No entry is zero. Subsidiary sequence: the number of distinct primes that can be formed using the digits of first 3n + 1 numbers.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 29 2003

%E a(4)-a(9) from _Donovan Johnson_, Apr 03 2008

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Last modified April 24 07:35 EDT 2024. Contains 371922 sequences. (Running on oeis4.)