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A000978 Wagstaff numbers: numbers n such that (2^n + 1)/3 is prime.
(Formerly M2413 N0956)
+0
35
3, 5, 7, 11, 13, 17, 19, 23, 31, 43, 61, 79, 101, 127, 167, 191, 199, 313, 347, 701, 1709, 2617, 3539, 5807, 10501, 10691, 11279, 12391, 14479, 42737, 83339, 95369, 117239, 127031, 138937, 141079, 267017, 269987, 374321, 986191 (list; graph; listen)
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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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