Similar submodules in cubian ring of index f(n)^2 where f(n) is the n-th positive integer represented by the quadratic form x^2 - 2 y^2.
A035285
Similar submodules in cubian ring of index f(n)^2 where f(n) is the n-th positive integer represented by the quadratic form x^2 - 2 y^2.
Terms
- a(0) =1a(1) =6a(2) =22a(3) =32a(4) =66a(5) =20a(6) =192a(7) =178a(8) =72a(9) =120a(10) =96a(11) =52a(12) =704a(13) =128a(14) =450a(15) =432a(16) =440a(17) =168a(18) =576a(19) =192a(20) =610a(21) =312a(22) =2112a(23) =768a(24) =640a(25) =1090a(26) =1584a(27) =288a(28) =1320a(29) =296
External references
- oeis: A035285