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A171536
Decimal expansion of 2/sqrt(7).
0
7, 5, 5, 9, 2, 8, 9, 4, 6, 0, 1, 8, 4, 5, 4, 4, 5, 4, 4, 2, 9, 0, 3, 3, 0, 7, 2, 4, 6, 8, 3, 6, 0, 1, 2, 1, 6, 3, 1, 5, 0, 2, 6, 2, 3, 7, 3, 7, 8, 4, 2, 9, 0, 8, 6, 7, 6, 6, 6, 6, 9, 8, 8, 3, 4, 3, 1, 6, 2, 5, 2, 0, 9, 2, 2, 9, 3, 8, 1, 7, 9, 3, 6, 0, 1, 1, 2, 2, 5, 3, 2, 7, 8, 4, 4, 1, 0, 3, 1, 6, 0, 4, 3, 0, 4
OFFSET
0,1
COMMENTS
The absolute value of the Clebsch-Gordan coupling coefficient <j1 j2; m1 m2 | J M> = <2 3/2 ; -2 -1/2 | 5/2 -5/2>.
FORMULA
equals 2*A020764 = 2/A010465.
EXAMPLE
sqrt(4/7) = 0.75592894601845445442903307...
MATHEMATICA
RealDigits[2/Sqrt[7], 10, 120][[1]] (* Harvey P. Dale, Jan 02 2022 *)
CROSSREFS
Sequence in context: A259679 A247876 A011474 * A264919 A233822 A199462
KEYWORD
cons,easy,nonn
AUTHOR
R. J. Mathar, Dec 11 2009
STATUS
approved