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A061414 m.2^n-1 is prime for exactly one coefficient m in the range 0<=m<=n. 2

%I

%S 8,9,19,23,25,26,34,39,58,64,66,68,82,83,84,86,108,109,117,118,128,

%T 129,130,134,136,150,151,175,176,178,179,194,197,227,231,234,240,241,

%U 248,258,259,275,276,278,281,309,315,316,317,330,331,332,336,337,339,340

%N m.2^n-1 is prime for exactly one coefficient m in the range 0<=m<=n.

%C For corresponding coefficient values see A061415.

%Y Cf. A061410-A061415.

%K nonn

%O 0,1

%A _Patrick De Geest_, May 15 2001.

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Last modified October 16 21:10 EDT 2019. Contains 328103 sequences. (Running on oeis4.)