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 A212224 Decimal expansion of phi^(2/Pi), the base of golden spiral 1
 1, 3, 5, 8, 4, 5, 6, 2, 7, 4, 1, 8, 2, 9, 8, 8, 4, 3, 5, 2, 0, 6, 1, 8, 0, 6, 0, 0, 5, 0, 1, 8, 7, 9, 4, 5, 6, 5, 9, 8, 0, 8, 8, 1, 8, 4, 6, 2, 3, 7, 0, 9, 1, 9, 3, 2, 5, 6, 0, 1, 0, 2, 5, 3, 2, 8, 9, 1, 1, 3, 0, 5, 7, 9, 8, 5, 1, 8, 7, 8, 2, 9, 5, 1, 0, 8, 1, 5, 9, 1, 1, 9, 7, 7, 5, 0, 2, 1, 3, 8, 8, 2, 2, 1, 4 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS In polar coordinates (r,theta), a golden spiral equation is r~c^theta, where c is this constant, with phi being the golden ratio (A001622). LINKS Wikipedia, Golden spiral EXAMPLE 1.3584562741829884352061806... MATHEMATICA RealDigits[GoldenRatio^(2/Pi), 10, 120][[1]] (* Harvey P. Dale, Jul 16 2012 *) CROSSREFS Cf. A001622, A212225. Sequence in context: A175628 A119360 A021283 * A020864 A152304 A021902 Adjacent sequences:  A212221 A212222 A212223 * A212225 A212226 A212227 KEYWORD nonn,cons,easy AUTHOR Stanislav Sykora, May 06 2012 STATUS approved

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