A061155 - OEIS

%I #16 Jan 26 2023 10:03:36

%S 31,91,353,493,512,587,692,752,829,919,1021,1024,1174,1384,1643,1658,

%T 1669,1735,1838,1913,1921,2042,2048,2057,2311,2423,2768,3167,3286,

%U 3316,3443,3826,3829,3842,3983,4037,4084,4096,4114,4429,4801,4846,4861,5536,6319,6334,6529

%N Numbers k such that k*2^m+1 is prime for exactly one exponent m in the range 0<=m<=k.

%C Corresponding exponent values see A061156.

%H Michael S. Branicky, <a href="/A061155/b061155.txt">Table of n, a(n) for n = 1..102</a>

%Y Cf. A061153, A061154, A061156, A061157, A061158.

%K nonn

%O 1,1

%A _Patrick De Geest_, Apr 15 2001

%E Offset corrected and a(29)-a(43) from _Sean A. Irvine_, Jan 24 2023

%E a(44) and beyond from _Michael S. Branicky_, Jan 25 2023