Number of points on surface of octahedron; also coordination sequence for cubic lattice: a(0) = 1; for n > 0, a(n) = 4n^2 + 2.
A005899
Number of points on surface of octahedron; also coordination sequence for cubic lattice: a(0) = 1; for n > 0, a(n) = 4n^2 + 2.
Terms
- a(0) =1a(1) =6a(2) =18a(3) =38a(4) =66a(5) =102a(6) =146a(7) =198a(8) =258a(9) =326a(10) =402a(11) =486a(12) =578a(13) =678a(14) =786a(15) =902a(16) =1026a(17) =1158a(18) =1298a(19) =1446a(20) =1602a(21) =1766a(22) =1938a(23) =2118a(24) =2306a(25) =2502a(26) =2706a(27) =2918a(28) =3138a(29) =3366
External references
- oeis: A005899