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A140968 Face hexadecimal primes. 1

%I #7 Mar 08 2015 19:09:48

%S 4173031,5221603,7318757,8367329,8367343,11513057,13610221,15707369,

%T 16436759,16436779,16436809,16436813,16436821,16436831,16436857,

%U 16436863,16436891,16436911,16436921,16436947,16436969,16436971

%N Face hexadecimal primes.

%H Gil Broussard, Jul 27 2008, <a href="/A140968/b140968.txt">Table of n, a(n) for n = 1..163</a>

%e a(1)=4173031 because hexadecimal(4173031)=3face7.

%t Take[Select[Sort[Flatten[Table[(16^(n + 4)*m) + (64206*16^n) + o, {m, 32}, {n, 3}, {o, 1, 16^n - 1, 2}]]], PrimeQ], 25] (* 64206 is FACE in hexadecimal *) (* _Alonso del Arte_, Aug 13 2008 *)

%K base,nonn,word

%O 1,1

%A _Gil Broussard_, Jul 27 2008

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Last modified May 8 19:26 EDT 2024. Contains 372341 sequences. (Running on oeis4.)