Crystal ball sequence for squashed {D_5}^* lattice, perhaps the smallest example of a "non-superficial" lattice.

A010025

Crystal ball sequence for squashed {D_5}^* lattice, perhaps the smallest example of a "non-superficial" lattice.

Terms

    a(0) =1a(1) =13a(2) =85a(3) =377a(4) =1239a(5) =3291a(6) =7503a(7) =15275a(8) =28517a(9) =49729a(10) =82081a(11) =129493a(12) =196715a(13) =289407a(14) =414219a(15) =578871a(16) =792233a(17) =1064405a(18) =1406797a(19) =1832209a(20) =2354911a(21) =2990723a(22) =3757095a(23) =4673187a(24) =5759949a(25) =7040201a(26) =8538713

External references