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A068713
Numbers k for which 10*2^k + 3 is a prime (giving terms of A068712).
1
0, 1, 2, 3, 4, 6, 7, 10, 11, 17, 19, 25, 27, 31, 33, 42, 43, 49, 51, 57, 64, 65, 106, 139, 196, 273, 279, 379, 392, 505, 663, 737, 874, 943, 1015, 1546, 1547, 1686, 3937, 4065, 5164, 6257, 6401, 7066, 7412, 7966, 9440, 9921, 11105, 15076, 15547, 22646, 24779
OFFSET
1,3
MATHEMATICA
Select[Range[0, 4100], PrimeQ[10*2^#+3] &] (* Jayanta Basu, May 22 2013 *)
CROSSREFS
Cf. A068712.
Sequence in context: A134519 A101505 A259625 * A218549 A354970 A099523
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Mar 05 2002
EXTENSIONS
More terms from Sascha Kurz, Mar 17 2002
Extended by Charles R Greathouse IV, Apr 24 2010
Offset 1 from Michel Marcus, Jan 10 2023
STATUS
approved