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A006553
Numbers n such that n*3^n - 1 is prime.
(Formerly M1575)
+0
1
1, 2, 6, 10, 18, 40, 46, 86, 118, 170, 1172, 1698, 1810, 2268, 4338, 18362, 72662, 88392, 94110, 161538, 168660, 292340, 401208
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.
AT&T Labs Research
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