A040009 - OEIS

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A040009

Decimal expansion of Pi*exp(-Pi^2/2).

%I #5 Sep 20 2013 15:48:51

%S 0,2,2,5,9,3,9,6,7,9,1,6,1,3,8,8,1,9,1,1,2,2,3,9,0,6,7,7,3,9,6,8,8,9,

%T 1,7,6,9,9,2,2,9,4,7,0,7,3,3,0,9,8,1,6,9,6,2,4,5,0,3,1,1,4,1,4,0,1,5,

%U 6,2,9,4,4,7,6,6,7,2,3,3,8,3,0,2,4,4

%N Decimal expansion of Pi*exp(-Pi^2/2).

%t Join[{0},RealDigits[Pi Exp[-Pi^2/2],10,120][[1]]] (* _Harvey P. Dale_, Sep 20 2013 *)

%K nonn,cons

%O 0,2

%A _N. J. A. Sloane_.

%E Corrected by _Harvey P. Dale_, Sep 20 2013