Maximum number of points visible from some point in a cubic n x n x n lattice.

Terms

a(0) =1a(1) =8a(2) =27a(3) =57a(4) =111a(5) =183a(6) =303a(7) =435a(8) =633a(9) =843a(10) =1155a(11) =1443a(12) =1893a(13) =2313a(14) =2895a(15) =3447a(16) =4215a(17) =4875a(18) =5865a(19) =6723a(20) =7887a(21) =8943a(22) =10371a(23) =11553a(24) =13293a(25) =14745a(26) =16707a(27) =18411a(28) =20703a(29) =22485