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%I #11 Jan 25 2023 22:06:43
%S 11,22,37,74,109,151,247,253,337,382,403,506,509,547,674,739,764,779,
%T 806,1325,1478,1528,1558,1589,1597,1612,1871,1987,2263,2279,2317,2759,
%U 2797,3056,3116,3194,3329,3341,3719,3742,3761,3821,4001,4412,4526,4558,4559,4603,4736,4813
%N Numbers k such that k*2^m-1 is prime for exactly one exponent m in the range 0<=m<=k.
%H Michael S. Branicky, <a href="/A061157/b061157.txt">Table of n, a(n) for n = 1..125</a>
%Y Cf. A061153, A061154, A061155, A061156. See A066158 for exponents.
%K nonn
%O 1,1
%A _Patrick De Geest_, Apr 15 2001
%E Offset corrected and more terms from _Sean A. Irvine_, Jan 24 2023
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