Integer part of the area of circles with prime radii.

Terms

a(0) =12a(1) =28a(2) =78a(3) =153a(4) =380a(5) =530a(6) =907a(7) =1134a(8) =1661a(9) =2642a(10) =3019a(11) =4300a(12) =5281a(13) =5808a(14) =6939a(15) =8824a(16) =10935a(17) =11689a(18) =14102a(19) =15836a(20) =16741a(21) =19606a(22) =21642a(23) =24884a(24) =29559a(25) =32047a(26) =33329a(27) =35968a(28) =37325a(29) =40114