login
A212225
Decimal expansion of (2/Pi)log(phi), the exponential rate factor of golden spiral.
3
3, 0, 6, 3, 4, 8, 9, 6, 2, 5, 3, 0, 0, 3, 3, 1, 2, 2, 1, 1, 5, 6, 7, 5, 7, 0, 1, 1, 9, 9, 7, 7, 0, 6, 8, 9, 2, 3, 5, 2, 5, 7, 8, 5, 6, 3, 8, 7, 5, 6, 9, 8, 3, 8, 3, 2, 9, 3, 4, 9, 1, 2, 1, 5, 9, 7, 8, 9, 1, 6, 1, 2, 6, 7, 4, 7, 5, 3, 4, 5, 6, 6, 7, 4, 1, 3, 9, 1, 8, 8, 1, 5, 0, 4, 8, 1, 7, 9, 2, 6, 3, 8, 2, 7, 6
OFFSET
0,1
COMMENTS
In polar coordinates (r,theta), a golden spiral equation is r~E^(c*theta), where c is this constant, with phi being the golden ratio (A001622).
EXAMPLE
0.3063489625300331221156757...
MATHEMATICA
RealDigits[2 Log[ GoldenRatio]/Pi, 10, 111][[1]] (* Robert G. Wilson v, Oct 24 2014 *)
CROSSREFS
Sequence in context: A120008 A162197 A160770 * A278085 A356195 A051021
KEYWORD
nonn,cons,easy
AUTHOR
Stanislav Sykora, May 06 2012
STATUS
approved