Crystal ball sequence for 6-dimensional cubic lattice.

Terms

a(0) =1a(1) =13a(2) =85a(3) =377a(4) =1289a(5) =3653a(6) =8989a(7) =19825a(8) =40081a(9) =75517a(10) =134245a(11) =227305a(12) =369305a(13) =579125a(14) =880685a(15) =1303777a(16) =1884961a(17) =2668525a(18) =3707509a(19) =5064793a(20) =6814249a(21) =9041957a(22) =11847485a(23) =15345233a(24) =19665841a(25) =24957661a(26) =31388293a(27) =39146185a(28) =48442297a(29) =59511829