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A276834 Decimal expansion of Pi/K, where K is the Landau-Ramanujan constant. 1

%I

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

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

%U 9,6,5,4,0,3,1,8,2,3,4,3

%N Decimal expansion of Pi/K, where K is the Landau-Ramanujan constant.

%C There are ~ Pi*n representations x^2 + y^2 of the numbers up to n, but only ~ K*n/sqrt(log n) of them are nonzero. Each of those nonzero numbers has on average (Pi/K)*sqrt(log n) such representations.

%H Charles R Greathouse IV, <a href="/A276834/b276834.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A064533, A004018.

%K nonn,cons

%O 1,1

%A _Charles R Greathouse IV_, Sep 19 2016

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Last modified June 23 04:15 EDT 2021. Contains 345395 sequences. (Running on oeis4.)