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A118727
Primes that are the sum of the numerator and denominator of a harmonic number.
+0
2
2, 5, 17, 37, 197, 503, 9649, 9901, 111431, 1532093, 1556117, 71354639, 392849685203, 67564865715709, 67929521152309, 2551756396706233, 345246028268898566519, 73744425850091533377950933665103
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.
AT&T Labs Research
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