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A068161 Smallest prime beginning and ending in at least n 3's. 2

%I #9 Jan 31 2024 01:05:12

%S 3,33533,3331333,3333133333,333331033333,33333362333333,

%T 333333313333333,333333332933333333,33333333316333333333,

%U 3333333333133333333333,33333333333733333333333

%N Smallest prime beginning and ending in at least n 3's.

%e a(2) = 33533 is a prime that starts with 33 and ends in 33 (two 3's).

%Y Cf. A068160.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Feb 24 2002

%E Corrected and extended by _Robert Gerbicz_, Sep 06 2002

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Last modified June 10 01:53 EDT 2024. Contains 373251 sequences. (Running on oeis4.)