Crystal ball sequence for 9-dimensional cubic lattice.

Terms

a(0) =1a(1) =19a(2) =181a(3) =1159a(4) =5641a(5) =22363a(6) =75517a(7) =224143a(8) =598417a(9) =1462563a(10) =3317445a(11) =7059735a(12) =14218905a(13) =27298155a(14) =50250765a(15) =89129247a(16) =152951073a(17) =254831667a(18) =413442773a(19) =654862247a(20) =1014889769a(21) =1541911931a(22) =2300409629a(23) =3375210671a(24) =4876601009a(25) =6946419011a(26) =9765268709