Great rhombicuboctahedron with faces of centered polygons.

Terms

a(0) =1a(1) =75a(2) =365a(3) =1015a(4) =2169a(5) =3971a(6) =6565a(7) =10095a(8) =14705a(9) =20539a(10) =27741a(11) =36455a(12) =46825a(13) =58995a(14) =73109a(15) =89311a(16) =107745a(17) =128555a(18) =151885a(19) =177879a(20) =206681a(21) =238435a(22) =273285a(23) =311375a(24) =352849a(25) =397851a(26) =446525a(27) =499015a(28) =555465a(29) =616019