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A057201
Numbers n such that 2^n + 21 is prime.
+0
2
1, 3, 4, 5, 7, 8, 11, 15, 16, 19, 44, 48, 51, 52, 61, 163, 196, 456, 492, 911, 997, 1616, 1631, 1647, 1803, 1899, 3112, 3584, 3956
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Maintained by
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
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