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A184857 Numbers k such that floor(k*e/(e-1)) is prime. 0

%I

%S 2,5,7,11,15,20,24,26,30,34,39,45,50,53,64,68,69,72,83,87,88,96,106,

%T 115,121,122,125,126,134,141,144,145,159,163,178,179,197,198,201,221,

%U 227,232,236,240,246,251,254,259,265,273,274,278,284,289,292,293,303,308,311,316,318,322,331,342,346,356,360,361,365,375,379,380,384,388,399,407,409,413,417,418,426,428,432,437,455,460,470,475,479,489,498,504,512,513,519,523,542,543,546,555,557,561,576,581,595,599

%N Numbers k such that floor(k*e/(e-1)) is prime.

%e See A077545.

%t (See A077545.)

%t Select[Range[600],PrimeQ[Floor[# E/(E-1)]]&] (* _Harvey P. Dale_, Jan 25 2011 *)

%Y Cf. A077545, A184856, A184858.

%K nonn

%O 1,1

%A _Clark Kimberling_, Jan 23 2011

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Last modified September 26 23:42 EDT 2021. Contains 347673 sequences. (Running on oeis4.)