a(n) = (16/3) * squared area of a triangle with sides prime(n), prime(n+1), and prime(n+2).

Terms

a(0) =0a(1) =225a(2) =897a(3) =7905a(4) =27265a(5) =61985a(6) =134225a(7) =253825a(8) =537425a(9) =1015105a(10) =1613745a(11) =2587585a(12) =3562545a(13) =4925921a(14) =7485985a(15) =10837585a(16) =14816945a(17) =18923905a(18) =24289265a(19) =30135105a(20) =37040465a(21) =48281105a(22) =63033425a(23) =82430705a(24) =100968945a(25) =115087105a(26) =127426145a(27) =144189185