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 A051559 Decimal expansion of tan(Pi/2 degrees). (Of course, tan(Pi/2 radians) = infinity.) 5
 0, 2, 7, 4, 2, 2, 4, 3, 8, 4, 8, 2, 0, 9, 7, 7, 6, 8, 5, 8, 3, 2, 8, 7, 9, 9, 1, 8, 7, 1, 1, 8, 6, 6, 0, 6, 4, 6, 6, 7, 2, 0, 7, 2, 6, 3, 1, 3, 6, 1, 4, 5, 0, 1, 5, 6, 2, 2, 9, 4, 4, 5, 5, 1, 9, 2, 9, 5, 4, 8, 0, 5, 9, 0, 0, 4, 5, 1, 9, 8, 2, 2, 8, 8, 9, 4, 6, 0, 3, 5, 2, 8, 9, 9, 9, 9, 8, 6, 6 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS EXAMPLE 0.027422438... MAPLE evalf(tan(Pi^2/360)) ; MATHEMATICA Join[{0}, RealDigits[Tan[Pi/2 Degree], 10, 120][[1]]] (* Harvey P. Dale, Sep 05 2015 *) PROG (PARI) tan(Pi^2/360) \\ Charles R Greathouse IV, Nov 05 2017 CROSSREFS Cf. A051553-A051555, A051557, A051558. Sequence in context: A200111 A201747 A117233 * A073239 A134882 A125140 Adjacent sequences:  A051556 A051557 A051558 * A051560 A051561 A051562 KEYWORD nonn,easy,cons AUTHOR STATUS approved

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Last modified January 29 07:03 EST 2020. Contains 331337 sequences. (Running on oeis4.)