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A074814
Numbers n such that the number of primes between n and 2n (inclusive) is equal to the number of primes between n and reverse(n) (inclusive).
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10, 25, 37, 40, 81, 102, 120, 204, 295, 340, 350, 387, 397, 1620, 1743, 2995, 3627, 3997, 4450, 4629, 4999, 8090, 8490, 9201, 9301, 10002, 12310
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 27 14:17 EST 2009. Contains 167569 sequences.
AT&T Labs Research
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