A152040 - OEIS

%I #11 Mar 30 2012 17:34:28

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

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

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

%N Decimal expansion of an "almost" BBP type solution in base 20: a=Sum[(1/20^n)*(4/(10*n + 1) + (-2)/(10*n + 2) + (-3)/(10*n + 7) + 5/(10*n + 9)), {n, 0, Infinity}].

%C The importance of such numbers comes from quantum cosmology: multi-universe theory. The idea is that other universe exist with just slightly different fundamental constants. This Pi' is off by -8.720461412092817*10^-6.

%F a=Sum[(1/20^n)*(4/(10*n + 1) + (-2)/(10*n + 2) + (-3)/(10*n + 7) + 5/(10*n + 9)), {n, 0, Infinity}].

%t a = N[Sum[(1/20^n)*(4/(10*n + 1) + (-2)/(10*n + 2) + (-3)/(10*n + 7) + 5/(10*n + 9)), {n, 0, 200}], 200]; Table[Mod[Floor[a*10^n], 10], {n, 0, 200}]

%K nonn,cons,less

%O 1,1

%A _Roger L. Bagula_, Nov 21 2008