%I #9 May 01 2014 02:37:07

%S 0,0,0,0,0,0,0,1,1,5,32,385,7573,181224,4624481,122089999,3328899592,

%T 93988909792

%N Number of not necessarily connected 3-regular simple graphs on 2n vertices with girth exactly 6.

%H Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/E_k-reg_girth_eq_g_index">Index of sequences counting not necessarily connected k-regular simple graphs with girth exactly g</a>

%F a(n) = A006926(n) + A185036(n).

%Y Not necessarily connected 3-regular simple graphs on 2n vertices with girth exactly g: A185130 (triangle); fixed g: A185133 (g=3), A185134 (g=4), A185135 (g=5), this sequence (g=6).

%K nonn,hard,more

%O 0,10

%A _Jason Kimberley_, Mar 21 2012