Crystal ball sequence for D_10 lattice.

Terms

a(0) =1a(1) =181a(2) =6621a(3) =101241a(4) =903881a(5) =5590989a(6) =26515269a(7) =102908209a(8) =341661649a(9) =1001294629a(10) =2650436845a(11) =6447019305a(12) =14603375385a(13) =31126140605a(14) =62948716245a(15) =121608649569a(16) =225663101089a(17) =404083136149a(18) =700922413309