Crystal ball sequence for D_5 lattice.

Terms

a(0) =1a(1) =41a(2) =411a(3) =2051a(4) =6981a(5) =18733a(6) =42783a(7) =86983a(8) =161993a(9) =281713a(10) =463715a(11) =729675a(12) =1105805a(13) =1623285a(14) =2318695a(15) =3234447a(16) =4419217a(17) =5928377a(18) =7824427a(19) =10177427a(20) =13065429a(21) =16574909a(22) =20801199a(23) =25848919a(24) =31832409a(25) =38876161a(26) =47115251a(27) =56695771a(28) =67775261a(29) =80523141