A352560 - OEIS

A352560

a(n) = number of modules with n elements over the ring of integers in the real quadratic field of discriminant 37.

%I #5 Mar 21 2022 11:13:37

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

%T 0,5,1,0,0,0,2,0,0,2,0,0,2,4,5,0,0,0,2,0,0,0,0,0,0,0,0,0,10,3,0,0,2,0,

%U 0,0,2,0,2,0,2,0,4,0,0,0,20,0,2,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,1,2,0,0,0,0,0,2,10,0,0,2,4,0,0,0

%N a(n) = number of modules with n elements over the ring of integers in the real quadratic field of discriminant 37.

%C See A352550 for comments and PARI code.

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

%K nonn

%O 1,3

%A _N. J. A. Sloane_, Mar 20 2022