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Search: id:A127557
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| A127557 |
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Decimal expansion of the number 5.018865657377378233714156283... having continued fraction expansion 5, 53, 157, 173, 211, 257, 263, 373, 563, ... (balanced primes order one A006562). |
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+0
6
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| 5, 0, 1, 8, 8, 6, 5, 6, 5, 7, 3, 7, 7, 3, 7, 8, 2, 3, 3, 7, 1, 4, 1, 5, 6, 2, 8, 3, 1, 8, 1, 1, 3, 6, 8, 6, 8, 1, 3, 3, 8, 9, 4, 1, 7, 7, 1, 4, 7, 9, 8, 0, 0, 5, 7, 1, 0, 3, 8, 2, 7, 6, 1, 9, 8, 0, 4, 1, 2, 6, 4, 7, 8, 3, 6, 2, 0, 2, 4, 8, 2, 0, 2, 4, 6, 5, 5, 7, 9, 5, 9, 7, 7, 9, 6, 2, 0, 7, 6, 0
(list; cons; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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a = {}; Do[If[PrimeQ[((Prime[n + 2] + Prime[n + 1])/2 + (Prime[n + 1] + Prime[n])/2)/2], AppendTo[a, ((Prime[n + 2] + Prime[n + 1])/2 + (Prime[n + 1] + Prime[n])/2)/2]], {n, 1, 1000}]; RealDigits[N[FromContinuedFraction[a], 100]][[1]]
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CROSSREFS
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Cf. A064442, A127549, A127550, A127551, A127552, A127553, A127555, A127556, A127557, A127558, A127559, A006562.
Sequence in context: A083861 A097591 A164652 this_sequence A060524 A133843 A064315
Adjacent sequences: A127554 A127555 A127556 this_sequence A127558 A127559 A127560
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KEYWORD
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cons,nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Jan 18 2007
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