a(n) = number of modules with n elements over the ring of integers in the real quadratic field of discriminant 40.

A038540

a(n) = number of modules with n elements over the ring of integers in the real quadratic field of discriminant 40.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =2a(4) =1a(5) =2a(6) =0a(7) =3a(8) =5a(9) =1a(10) =0a(11) =4a(12) =2a(13) =0a(14) =2a(15) =5a(16) =0a(17) =5a(18) =0a(19) =2a(20) =0a(21) =0a(22) =0a(23) =6a(24) =2a(25) =2a(26) =10a(27) =0a(28) =0a(29) =2

External references