login
A100924
Digits in the decimal expansion of A100923 interpreted as digits of a binary number 0.1110101001010...
2
9, 1, 5, 2, 9, 4, 7, 9, 7, 5, 1, 3, 5, 6, 0, 5, 7, 9, 7, 3, 3, 6, 1, 5, 3, 9, 7, 2, 8, 5, 6, 2, 0, 8, 1, 1, 1, 2, 5, 1, 0, 2, 0, 4, 5, 3, 6, 9, 5, 7, 7, 7, 5, 0, 8, 3, 0, 0, 7, 9, 4, 6, 7, 9, 1, 5, 2, 1, 6, 7, 3, 1, 9, 1, 5, 1, 7, 4, 5, 3, 3, 4, 3, 9, 6, 7, 0, 9, 8, 0, 1, 6, 8, 5, 7, 3, 4, 0, 2, 9, 4, 4, 4, 5, 1
OFFSET
0,1
EXAMPLE
0.91529479751356057973361539728562081112510204536957775...
MATHEMATICA
N[Sum[If[And[PrimeQ[6*k - 1], PrimeQ[6*k + 1]], 1, 0]*2^(-k), {k, 1, 500}], 110]
CROSSREFS
Sequence in context: A328097 A197684 A121224 * A350885 A258268 A143296
KEYWORD
cons,nonn,base
AUTHOR
Joseph Biberstine (jrbibers(AT)indiana.edu), Nov 22 2004
STATUS
approved