p(11p-7) where p is prime.

Terms

a(0) =30a(1) =78a(2) =240a(3) =490a(4) =1254a(5) =1768a(6) =3060a(7) =3838a(8) =5658a(9) =9048a(10) =10354a(11) =14800a(12) =18204a(13) =20038a(14) =23970a(15) =30528a(16) =37878a(17) =40504a(18) =48910a(19) =54954a(20) =58108a(21) =68098a(22) =75198a(23) =86508a(24) =102820a(25) =111504a(26) =115978a(27) =125190a(28) =129928a(29) =139668