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A127556
Decimal expansion of the number 4.1636635147332912770473687837946011358... having continued fraction expansion 4, 6, 9, 12, 15, 18, 21, 26, 30, 34, 39, ... (arithmetical average of two consecutive odd primes A024675).
6
4, 1, 6, 3, 6, 6, 3, 5, 1, 4, 7, 3, 3, 2, 9, 1, 2, 7, 7, 0, 4, 7, 3, 6, 8, 7, 8, 3, 7, 9, 4, 6, 0, 1, 1, 3, 5, 8, 0, 5, 7, 6, 4, 4, 9, 7, 4, 6, 3, 7, 4, 3, 9, 6, 9, 1, 5, 9, 0, 3, 6, 9, 5, 1, 4, 8, 8, 9, 8, 3, 6, 6, 8, 4, 4, 8, 0, 3, 1, 3, 7, 5, 7, 8, 0, 5, 3, 7, 9, 7, 1, 6, 5, 3, 8, 4, 7, 2, 6, 7
OFFSET
1,1
MATHEMATICA
a = {}; Do[AppendTo[a, (Prime[n] + Prime[n + 1])/2], {n, 2, 500}]; RealDigits[N[FromContinuedFraction[a], 100]][[1]]
KEYWORD
cons,nonn
AUTHOR
Artur Jasinski, Jan 18 2007
EXTENSIONS
a(100) corrected by Sean A. Irvine, Jul 09 2023
STATUS
approved