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A160403 Primes starting and ending respectively with 23 and 57, and with either no space or only 0's in between. 1

%I #2 Mar 31 2012 10:26:15

%S 2357,23057,2300057,230000000057,2300000000000000000000057,

%T 230000000000000000000000000000000057,

%U 2300000000000000000000000000000000057

%N Primes starting and ending respectively with 23 and 57, and with either no space or only 0's in between.

%K nonn,base

%O 1,1

%A _Lekraj Beedassy_, May 13 2009

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Last modified May 13 13:35 EDT 2024. Contains 372519 sequences. (Running on oeis4.)