a(1) = 1 because J((1+sqrt(1))/2) = 1;
a(2) = 3 because J((1+sqrt(3))/2) = 0;
a(3) = 7 because J((1+sqrt(7))/2) = 125/64;
a(4) = 11 because J((1+sqrt(11))/2) = 512/27;
a(5) = 19 because J((1+sqrt(19))/2) = 512;
a(6) = 27 because J((1+sqrt(27))/2) = 64000/9;
a(7) = 43 because J((1+sqrt(43))/2) = 512000;
a(8) = 67 because J((1+sqrt(67))/2) = 85184000;
a(9) = 163 because J((1+sqrt(163))/2) = 151931373056000.
