

A064853


Lemniscate constant.


7



5, 2, 4, 4, 1, 1, 5, 1, 0, 8, 5, 8, 4, 2, 3, 9, 6, 2, 0, 9, 2, 9, 6, 7, 9, 1, 7, 9, 7, 8, 2, 2, 3, 8, 8, 2, 7, 3, 6, 5, 5, 0, 9, 9, 0, 2, 8, 6, 3, 2, 4, 6, 3, 2, 5, 6, 3, 3, 6, 4, 3, 4, 0, 7, 6, 0, 1, 5, 8, 1, 1, 7, 4, 1, 4, 0, 8, 2, 8, 5, 0, 0, 4, 6, 0, 5, 9, 1, 0, 6, 5, 9, 2, 2, 8, 5, 8, 1, 8, 6, 8, 9
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OFFSET

1,1


LINKS

Harry J. Smith, Table of n, a(n) for n=1,...,5000
Eric Weisstein's World of Mathematics, Leminscate Constant.
Eric Weisstein's World of Mathematics, Lemniscate


EXAMPLE

5.244115108584239620929679...


MATHEMATICA

First@RealDigits[ N[ Gamma[ 1/4 ]^2/Sqrt[ 2 Pi ], 102 ] ]


PROG

(PARI) { allocatemem(932245000); default(realprecision, 5080); x=gamma(1/4)^2/sqrt(2*Pi); for (n=1, 5000, d=floor(x); x=(xd)*10; write("b064853.txt", n, " ", d)); } [From Harry J. Smith, Jun 20 2009]


CROSSREFS

Sequence in context: A111145 A249920 A021660 * A177148 A188739 A257701
Adjacent sequences: A064850 A064851 A064852 * A064854 A064855 A064856


KEYWORD

nonn,cons,easy


AUTHOR

Eric W. Weisstein, Sep 22 2001


STATUS

approved



