%I #15 May 25 2024 16:13:27
%S 26,29,38,53,61,87,106,109,118,157,202,214,247,262,277,298,339,358,
%T 397,411,451,515,707,771,835,843,1059,1099,1147,1203,1219,1267,1315,
%U 1347,1363,1563,1603,1843,1915,1963,2227,2283,2443,2515,2563,2787
%N Numbers k such that Q(sqrt(-k)) has class number 6.
%H Jinyuan Wang, <a href="/A055109/b055109.txt">Table of n, a(n) for n = 1..51</a>
%H <a href="/index/Qua#quadfield">Index entries for sequences related to quadratic fields</a>
%t Select[Range[10000], MoebiusMu[#] != 0 && NumberFieldClassNumber[Sqrt[-#]] == 6 &] (* _Jinyuan Wang_, Mar 08 2020 *)
%o (PARI) \\ See A005847.
%Y See A003173, A005847, A006203, A046085, A046002, A055109, A046004, A055110, A046006, A055111 for class numbers 1 through 10.
%K nonn,fini,full
%O 1,1
%A _N. J. A. Sloane_, Jun 16 2000