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A247856 Decimal expansion of the value of the continued fraction [0; 3, 5, 5, 7, 11, 13, 17, 19, ...] generated by twin primes. 2
3, 1, 3, 2, 3, 3, 0, 8, 0, 9, 8, 6, 9, 4, 5, 9, 1, 2, 6, 3, 0, 7, 8, 6, 4, 8, 6, 4, 7, 2, 1, 7, 2, 8, 0, 0, 4, 3, 9, 2, 5, 1, 1, 7, 4, 5, 0, 5, 2, 2, 5, 3, 9, 7, 1, 7, 3, 2, 6, 8, 4, 8, 5, 4, 0, 4, 4, 3, 1, 4, 5, 9, 0, 8, 5, 0, 2, 0, 1, 0, 3, 6, 8, 3, 6, 9, 3, 8, 1, 0, 8, 9, 1, 2, 6, 2, 6, 7, 6, 9, 8 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..100.

Eric Weisstein's MathWorld, Twin Primes

Marek Wolf, Continued fractions constructed from prime numbers, arxiv.org/abs/1003.4015, p. 6.

EXAMPLE

0.313233080986945912630786486472172800439251174505225397...

MATHEMATICA

twinPrimes = Select[{#, #+2}& /@ Prime[Range[100]], PrimeQ[Last[#]]&] // Flatten; u2 = FromContinuedFraction[Join[{0}, twinPrimes]]; RealDigits[u2, 10, 101] // First

CROSSREFS

Cf. A077800, A108170, A127552.

Sequence in context: A123508 A117621 A178055 * A059660 A194003 A035456

Adjacent sequences:  A247853 A247854 A247855 * A247857 A247858 A247859

KEYWORD

nonn,cons

AUTHOR

Jean-Fran├žois Alcover, Sep 25 2014

STATUS

approved

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Last modified October 22 19:53 EDT 2019. Contains 328319 sequences. (Running on oeis4.)