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A061412
Numbers k such that m*2^k + 1 is prime for exactly one coefficient m in the range 0 <= m <= k.
4
1, 2, 3, 4, 5, 18, 21, 23, 24, 26, 30, 32, 34, 35, 56, 57, 58, 59, 69, 70, 71, 87, 95, 96, 97, 106, 107, 108, 109, 112, 116, 120, 121, 131, 137, 139, 140, 142, 150, 151, 156, 159, 161, 163, 171, 172, 176, 177, 178, 181, 191, 192, 194, 195, 196, 197, 212, 219, 220
OFFSET
1,2
COMMENTS
For corresponding coefficient values see A061413.
CROSSREFS
KEYWORD
nonn
AUTHOR
Patrick De Geest, May 15 2001
EXTENSIONS
Name edited and Offset changed by Jon E. Schoenfield, Oct 26 2019
STATUS
approved