A352563 - OEIS

A352563

a(n) = number of modules with n elements over the ring of integers in the imaginary quadratic field of discriminant -7.

%I #5 Mar 21 2022 11:26:07

%S 1,2,0,5,0,0,1,10,1,0,2,0,0,2,0,20,0,2,0,0,0,4,2,0,1,0,0,5,2,0,0,36,0,

%T 0,0,5,2,0,0,0,0,0,2,10,0,4,0,0,2,2,0,0,2,0,0,10,0,4,0,0,0,0,1,65,0,0,

%U 2,0,0,0,2,10,0,4,0,0,2,0,2,0,2,0,0,0,0,4,0,20,0,0,0,10,0,0,0,0,0,4,2,5,0,0,0,0,0,4,2,0,2,0,0,20,2,0,0,10

%N a(n) = number of modules with n elements over the ring of integers in the imaginary quadratic field of discriminant -7.

%C See A352550 for comments and PARI code.

%Y Cf. A038540, A038541, A248107, A352550-A352567.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Mar 21 2022