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A107611 Indices of primes with digit product = 2. 2

%I #8 Sep 24 2013 09:21:36

%S 1,47,318,10546,10552,10629,86544,56196114,56200915,56676030,

%T 4555804158,4559732893,77220966866

%N Indices of primes with digit product = 2.

%C Next term is A000720(111111111111112111) > A000720(10^17) > 2*10^15.

%F a(n) = A000720(A107612(n)). - _David Wasserman_, May 07 2008

%t Do[If[Apply[Times, IntegerDigits[Prime[n]]]==2, Print[n]], {n, 100000}]

%Y Corresponding primes in A107612.

%Y Cf. A053666, A101987, A107612.

%K more,nonn,base

%O 1,2

%A _Zak Seidov_, May 17 2005

%E More terms from _Ryan Propper_, Jan 03 2008

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)