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A107922 Numbers n such that sum of terms of continued fraction for the harmonic mean of n and n-th prime is prime. 1
3, 13, 17, 18, 19, 21, 20, 19, 21, 23, 26, 27, 26, 27, 30, 42, 48, 137, 51, 52, 53, 54, 63, 73, 88, 90, 101, 110, 123, 113, 140, 115, 118, 121, 110, 123, 128, 133, 149, 48, 137, 113, 140, 133, 149 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Eric Weisstein's World of Mathematics, Continued Fraction.

Eric Weisstein's World of Mathematics, Harmonic Mean.

CROSSREFS

Cf. A107919 Sum of terms of continued fraction for the harmonic mean of n and n-th prime, A107923 Primes occurring in A107919.

Sequence in context: A041297 A041815 A042589 * A119889 A038956 A040123

Adjacent sequences:  A107919 A107920 A107921 * A107923 A107924 A107925

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), May 28 2005

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Last modified February 15 11:25 EST 2012. Contains 205777 sequences.