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A032728 n prefixed by '3' and followed by '9' is a prime. 0

%I

%S 4,5,7,8,10,11,16,20,22,25,29,31,32,35,38,44,46,49,52,53,55,65,70,71,

%T 73,76,77,88,91,92,98,101,103,106,107,113,115,118,121,124,125,131,137,

%U 146,148,164,169,172,176,179,184,185,200,202,205,206,208,209,211

%N n prefixed by '3' and followed by '9' is a prime.

%K nonn,base

%O 0,1

%A _Patrick De Geest_, May 15 1998

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Last modified September 17 16:57 EDT 2019. Contains 327136 sequences. (Running on oeis4.)